102604431 has 8 divisors (see below), whose sum is σ = 139716864. Its totient is φ = 66947480.

The previous prime is 102604421. The next prime is 102604459. The reversal of 102604431 is 134406201.

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 102604431 - 2⁵ = 102604399 is a prime.

It is a super-2 number, since 2×102604431² = 21055338521667522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102604398 and 102604407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102604421) 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, 363705 + ... + 363986.

It is an arithmetic number, because the mean of its divisors is an integer number (17464608).

Almost surely, 2^102604431 is an apocalyptic number.

102604431 is a deficient number, since it is larger than the sum of its proper divisors (37112433).

102604431 is an equidigital number, since it uses as much as digits as its factorization.

102604431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727741.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 102604431 is about 10129.3845321421. The cubic root of 102604431 is about 468.1539644277.

The spelling of 102604431 in words is "one hundred two million, six hundred four thousand, four hundred thirty-one".