102913631 has 4 divisors (see below), whose sum is σ = 108967392. Its totient is φ = 96859872.

The previous prime is 102913627. The next prime is 102913667. The reversal of 102913631 is 136319201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136319201 = 61 ⋅2234741.

It is a cyclic number.

It is not a de Polignac number, because 102913631 - 2² = 102913627 is a prime.

It is a super-2 number, since 2×102913631² = 21182430891208322, 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 102913631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102913621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3026855 + ... + 3026888.

It is an arithmetic number, because the mean of its divisors is an integer number (27241848).

Almost surely, 2^102913631 is an apocalyptic number.

102913631 is a deficient number, since it is larger than the sum of its proper divisors (6053761).

102913631 is an equidigital number, since it uses as much as digits as its factorization.

102913631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6053760.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 102913631 is about 10144.6355774863. The cubic root of 102913631 is about 468.6237558458.

The spelling of 102913631 in words is "one hundred two million, nine hundred thirteen thousand, six hundred thirty-one".