102256456 has 16 divisors (see below), whose sum is σ = 196913340. Its totient is φ = 49746240.

The previous prime is 102256447. The next prime is 102256457. The reversal of 102256456 is 654652201.

It can be written as a sum of positive squares in 2 ways, for example, as 100200100 + 2056356 = 10010^2 + 1434^2 .

It is not an unprimeable number, because it can be changed into a prime (102256457) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 172435 + ... + 173026.

Almost surely, 2^102256456 is an apocalyptic number.

It is an amenable number.

102256456 is a deficient number, since it is larger than the sum of its proper divisors (94656884).

102256456 is a wasteful number, since it uses less digits than its factorization.

102256456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345504 (or 345500 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 102256456 is about 10112.1934316942. The cubic root of 102256456 is about 467.6241290108.

The spelling of 102256456 in words is "one hundred two million, two hundred fifty-six thousand, four hundred fifty-six".