139578964 has 24 divisors (see below), whose sum is σ = 281015168. Its totient is φ = 59421600.

The previous prime is 139578953. The next prime is 139578983. The reversal of 139578964 is 469875931.

It is a happy number.

It is a congruent number.

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, 12279 + ... + 20734.

Almost surely, 2^139578964 is an apocalyptic number.

139578964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

139578964 is an abundant number, since it is smaller than the sum of its proper divisors (141436204).

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

139578964 is a wasteful number, since it uses less digits than its factorization.

139578964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33175 (or 33173 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 52.

The square root of 139578964 is about 11814.3541507778. The cubic root of 139578964 is about 518.7283572719.

The spelling of 139578964 in words is "one hundred thirty-nine million, five hundred seventy-eight thousand, nine hundred sixty-four".