102155010 has 16 divisors (see below), whose sum is σ = 245172096. Its totient is φ = 27241328.

The previous prime is 102154993. The next prime is 102155047. The reversal of 102155010 is 10551201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1702554 + ... + 1702613.

It is an arithmetic number, because the mean of its divisors is an integer number (15323256).

Almost surely, 2^102155010 is an apocalyptic number.

102155010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102155010 is an abundant number, since it is smaller than the sum of its proper divisors (143017086).

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

102155010 is a wasteful number, since it uses less digits than its factorization.

102155010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405177.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 102155010 is about 10107.1761634989. The cubic root of 102155010 is about 467.4694385543.

It can be divided in two parts, 10215 and 5010, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 102155010 in words is "one hundred two million, one hundred fifty-five thousand, ten".