102506156 has 12 divisors (see below), whose sum is σ = 179670120. Its totient is φ = 51171840.

The previous prime is 102506149. The next prime is 102506161. The reversal of 102506156 is 651605201.

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 3 ways as a sum of consecutive naturals, for example, 17426 + ... + 22553.

It is an arithmetic number, because the mean of its divisors is an integer number (14972510).

Almost surely, 2^102506156 is an apocalyptic number.

It is an amenable number.

102506156 is a deficient number, since it is larger than the sum of its proper divisors (77163964).

102506156 is a wasteful number, since it uses less digits than its factorization.

102506156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40624 (or 40622 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 102506156 is about 10124.5323842635. The cubic root of 102506156 is about 468.0044500027.

The spelling of 102506156 in words is "one hundred two million, five hundred six thousand, one hundred fifty-six".