102613131 has 12 divisors (see below), whose sum is σ = 153000640. Its totient is φ = 66201840.

The previous prime is 102613127. The next prime is 102613151. The reversal of 102613131 is 131316201.

It is not a de Polignac number, because 102613131 - 2² = 102613127 is a prime.

It is a super-2 number, since 2×102613131² = 21058909307246322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102613111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183616 + ... + 184173.

Almost surely, 2^102613131 is an apocalyptic number.

102613131 is a deficient number, since it is larger than the sum of its proper divisors (50387509).

102613131 is a wasteful number, since it uses less digits than its factorization.

102613131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367826 (or 367823 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 102613131 is about 10129.8139667024. The cubic root of 102613131 is about 468.1671959043.

Adding to 102613131 its reverse (131316201), we get a palindrome (233929332).

The spelling of 102613131 in words is "one hundred two million, six hundred thirteen thousand, one hundred thirty-one".