102156456 has 32 divisors (see below), whose sum is σ = 259581600. Its totient is φ = 33493440.

The previous prime is 102156449. The next prime is 102156463. The reversal of 102156456 is 654651201.

It is an interprime number because it is at equal distance from previous prime (102156449) and next prime (102156463).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33426 + ... + 36353.

It is an arithmetic number, because the mean of its divisors is an integer number (8111925).

Almost surely, 2^102156456 is an apocalyptic number.

It is an amenable number.

102156456 is an abundant number, since it is smaller than the sum of its proper divisors (157425144).

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

102156456 is a wasteful number, since it uses less digits than its factorization.

102156456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69849 (or 69845 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 102156456 is about 10107.2476965789. The cubic root of 102156456 is about 467.4716442142.

The spelling of 102156456 in words is "one hundred two million, one hundred fifty-six thousand, four hundred fifty-six".