102556112 has 10 divisors (see below), whose sum is σ = 198702498. Its totient is φ = 51278048.

The previous prime is 102556109. The next prime is 102556117. The reversal of 102556112 is 211655201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 89567296 + 12988816 = 9464^2 + 3604^2 .

It is a super-2 number, since 2×102556112² = 21035512217113088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102556117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3204863 + ... + 3204894.

Almost surely, 2^102556112 is an apocalyptic number.

It is an amenable number.

102556112 is a deficient number, since it is larger than the sum of its proper divisors (96146386).

102556112 is an equidigital number, since it uses as much as digits as its factorization.

102556112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6409765 (or 6409759 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 102556112 is about 10126.9991606596. Note that the first 3 decimals coincide. The cubic root of 102556112 is about 468.0804644076.

The spelling of 102556112 in words is "one hundred two million, five hundred fifty-six thousand, one hundred twelve".