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314131121 = 661947459
BaseRepresentation
bin10010101110010…
…100001010110001
3210220002111212222
4102232110022301
51120404143441
651100530425
710533033113
oct2256241261
9726074788
10314131121
111513563a7
1289250a15
1350107b05
142da113b3
151c8a0d4b
hex12b942b1

314131121 has 4 divisors (see below), whose sum is σ = 314185200. Its totient is φ = 314077044.

The previous prime is 314131099. The next prime is 314131157. The reversal of 314131121 is 121131413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121131413 = 139317801.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-314131121 is a prime.

It is a super-2 number, since 2×3141311212 = 197356722361433282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 314131121.

It is not an unprimeable number, because it can be changed into a prime (314133121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17111 + ... + 30348.

It is an arithmetic number, because the mean of its divisors is an integer number (78546300).

Almost surely, 2314131121 is an apocalyptic number.

It is an amenable number.

314131121 is a deficient number, since it is larger than the sum of its proper divisors (54079).

314131121 is an equidigital number, since it uses as much as digits as its factorization.

314131121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54078.

The product of its digits is 72, while the sum is 17.

The square root of 314131121 is about 17723.7445535643. The cubic root of 314131121 is about 679.7830341543.

Adding to 314131121 its reverse (121131413), we get a palindrome (435262534).

The spelling of 314131121 in words is "three hundred fourteen million, one hundred thirty-one thousand, one hundred twenty-one".

Divisors: 1 6619 47459 314131121