102864731 has 2 divisors, whose sum is σ = 102864732. Its totient is φ = 102864730.

The previous prime is 102864721. The next prime is 102864733. The reversal of 102864731 is 137468201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102864731 - 2⁶ = 102864667 is a prime.

It is a super-2 number, since 2×102864731² = 21162305767404722, which contains 22 as substring.

Together with 102864733, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102864733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51432365 + 51432366.

It is an arithmetic number, because the mean of its divisors is an integer number (51432366).

Almost surely, 2^102864731 is an apocalyptic number.

102864731 is a deficient number, since it is larger than the sum of its proper divisors (1).

102864731 is an equidigital number, since it uses as much as digits as its factorization.

102864731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 102864731 is about 10142.2251503307. The cubic root of 102864731 is about 468.5495210015.

The spelling of 102864731 in words is "one hundred two million, eight hundred sixty-four thousand, seven hundred thirty-one".