139500165 has 16 divisors (see below), whose sum is σ = 255086208. Its totient is φ = 63771456.

The previous prime is 139500157. The next prime is 139500169. The reversal of 139500165 is 561005931.

It is not a de Polignac number, because 139500165 - 2³ = 139500157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139500169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664182 + ... + 664391.

It is an arithmetic number, because the mean of its divisors is an integer number (15942888).

Almost surely, 2^139500165 is an apocalyptic number.

139500165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139500165 is a deficient number, since it is larger than the sum of its proper divisors (115586043).

139500165 is a wasteful number, since it uses less digits than its factorization.

139500165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328588.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 139500165 is about 11811.0187960226. The cubic root of 139500165 is about 518.6307232420.

The spelling of 139500165 in words is "one hundred thirty-nine million, five hundred thousand, one hundred sixty-five".