139064955 has 16 divisors (see below), whose sum is σ = 222743040. Its totient is φ = 74088288.

The previous prime is 139064929. The next prime is 139064957. The reversal of 139064955 is 559460931.

It is not a de Polignac number, because 139064955 - 2⁸ = 139064699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139064957) 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, 11124 + ... + 20046.

It is an arithmetic number, because the mean of its divisors is an integer number (13921440).

Almost surely, 2^139064955 is an apocalyptic number.

139064955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139064955 is a deficient number, since it is larger than the sum of its proper divisors (83678085).

139064955 is a wasteful number, since it uses less digits than its factorization.

139064955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9970.

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 139064955 is about 11792.5805064032. The cubic root of 139064955 is about 518.0908232591.

The spelling of 139064955 in words is "one hundred thirty-nine million, sixty-four thousand, nine hundred fifty-five".