102256443 has 24 divisors (see below), whose sum is σ = 152375808. Its totient is φ = 66044592.

The previous prime is 102256439. The next prime is 102256447. The reversal of 102256443 is 344652201.

102256443 is a `hidden beast` number, since 10 + 2 + 2 + 5 + 644 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (102256439) and next prime (102256447).

It is not a de Polignac number, because 102256443 - 2² = 102256439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102256447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42396 + ... + 44742.

It is an arithmetic number, because the mean of its divisors is an integer number (6348992).

Almost surely, 2^102256443 is an apocalyptic number.

102256443 is a deficient number, since it is larger than the sum of its proper divisors (50119365).

102256443 is a wasteful number, since it uses less digits than its factorization.

102256443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503 (or 2500 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 102256443 is about 10112.1927889059. The cubic root of 102256443 is about 467.6241091942.

The spelling of 102256443 in words is "one hundred two million, two hundred fifty-six thousand, four hundred forty-three".