102639150 has 60 divisors (see below), whose sum is σ = 285196032. Its totient is φ = 27369360.

The previous prime is 102639139. The next prime is 102639209. The reversal of 102639150 is 51936201.

102639150 is a `hidden beast` number, since 10 + 2 + 639 + 15 + 0 = 666.

It is a super-2 number, since 2×102639150² = 21069590225445000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

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 29 ways as a sum of consecutive naturals, for example, 8622 + ... + 16721.

Almost surely, 2^102639150 is an apocalyptic number.

102639150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102639150 is an abundant number, since it is smaller than the sum of its proper divisors (182556882).

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

102639150 is a wasteful number, since it uses less digits than its factorization.

102639150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25367 (or 25353 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 102639150 is about 10131.0981635754. The cubic root of 102639150 is about 468.2067626821.

The spelling of 102639150 in words is "one hundred two million, six hundred thirty-nine thousand, one hundred fifty".