102155700 has 36 divisors (see below), whose sum is σ = 295571360. Its totient is φ = 27241440.

The previous prime is 102155699. The next prime is 102155749. The reversal of 102155700 is 7551201.

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 11 ways as a sum of consecutive naturals, for example, 169960 + ... + 170559.

Almost surely, 2^102155700 is an apocalyptic number.

102155700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102155700 is an abundant number, since it is smaller than the sum of its proper divisors (193415660).

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

102155700 is a wasteful number, since it uses less digits than its factorization.

102155700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340536 (or 340529 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 102155700 is about 10107.2102976044. The cubic root of 102155700 is about 467.4704910502.

The spelling of 102155700 in words is "one hundred two million, one hundred fifty-five thousand, seven hundred".