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131001313 = 971678087
BaseRepresentation
bin1111100111011…
…10101111100001
3100010111120000111
413303232233201
5232014020223
620555451321
73150331012
oct763565741
9303446014
10131001313
1167a46253
1237a56b41
13211a9491
1413581009
15b77a30d
hex7ceebe1

131001313 has 8 divisors (see below), whose sum is σ = 133160832. Its totient is φ = 128858496.

The previous prime is 131001301. The next prime is 131001317. The reversal of 131001313 is 313100131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131001313 - 221 = 128904161 is a prime.

It is a super-2 number, since 2×1310013132 = 34322688015447938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131001293 and 131001302.

It is not an unprimeable number, because it can be changed into a prime (131001317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12156 + ... + 20242.

It is an arithmetic number, because the mean of its divisors is an integer number (16645104).

Almost surely, 2131001313 is an apocalyptic number.

It is an amenable number.

131001313 is a deficient number, since it is larger than the sum of its proper divisors (2159519).

131001313 is an equidigital number, since it uses as much as digits as its factorization.

131001313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8351.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 131001313 is about 11445.5805007872. The cubic root of 131001313 is about 507.8770046022.

Adding to 131001313 its reverse (313100131), we get a palindrome (444101444).

It can be divided in two parts, 13100131 and 3, that multiplied together give a palindrome (39300393).

The spelling of 131001313 in words is "one hundred thirty-one million, one thousand, three hundred thirteen".