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132313121 = 431306991
BaseRepresentation
bin1111110001011…
…11000000100001
3100012222012110222
413320233000201
5232333004441
621043532425
73164433353
oct770570041
9305865428
10132313121
1168761896
123838a115
13215485b5
14138030d3
15b938d4b
hex7e2f021

132313121 has 4 divisors (see below), whose sum is σ = 132620544. Its totient is φ = 132005700.

The previous prime is 132313117. The next prime is 132313123. The reversal of 132313121 is 121313231.

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: 121313231 = 139331787.

It is a cyclic number.

It is not a de Polignac number, because 132313121 - 22 = 132313117 is a prime.

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 132313121.

It is not an unprimeable number, because it can be changed into a prime (132313123) 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, 153065 + ... + 153926.

It is an arithmetic number, because the mean of its divisors is an integer number (33155136).

Almost surely, 2132313121 is an apocalyptic number.

It is an amenable number.

132313121 is a deficient number, since it is larger than the sum of its proper divisors (307423).

132313121 is an equidigital number, since it uses as much as digits as its factorization.

132313121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307422.

The product of its digits is 108, while the sum is 17.

The square root of 132313121 is about 11502.7440639180. The cubic root of 132313121 is about 509.5666201714.

Adding to 132313121 its reverse (121313231), we get a palindrome (253626352).

The spelling of 132313121 in words is "one hundred thirty-two million, three hundred thirteen thousand, one hundred twenty-one".

Divisors: 1 431 306991 132313121