102154056 has 32 divisors (see below), whose sum is σ = 256961760. Its totient is φ = 33841152.

The previous prime is 102154049. The next prime is 102154057. The reversal of 102154056 is 650451201.

It is a super-2 number, since 2×102154056² = 20870902314502272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (102154057) 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, 9145 + ... + 16968.

It is an arithmetic number, because the mean of its divisors is an integer number (8030055).

Almost surely, 2^102154056 is an apocalyptic number.

It is an amenable number.

102154056 is an abundant number, since it is smaller than the sum of its proper divisors (154807704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102154056 is a wasteful number, since it uses less digits than its factorization.

102154056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26285 (or 26281 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 102154056 is about 10107.1289691979. The cubic root of 102154056 is about 467.4679833565.

The spelling of 102154056 in words is "one hundred two million, one hundred fifty-four thousand, fifty-six".