102100056 has 32 divisors (see below), whose sum is σ = 256089600. Its totient is φ = 33921440.

The previous prime is 102100007. The next prime is 102100067. The reversal of 102100056 is 650001201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 625 + ... + 14303.

It is an arithmetic number, because the mean of its divisors is an integer number (8002800).

Almost surely, 2^102100056 is an apocalyptic number.

It is an amenable number.

102100056 is an abundant number, since it is smaller than the sum of its proper divisors (153989544).

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

102100056 is a wasteful number, since it uses less digits than its factorization.

102100056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13999 (or 13995 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 102100056 is about 10104.4572343100. The cubic root of 102100056 is about 467.3855988960.

Adding to 102100056 its reverse (650001201), we get a palindrome (752101257).

The spelling of 102100056 in words is "one hundred two million, one hundred thousand, fifty-six".