139667916 has 12 divisors (see below), whose sum is σ = 325891832. Its totient is φ = 46555968.

The previous prime is 139667881. The next prime is 139667939. The reversal of 139667916 is 619766931.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5819485 + ... + 5819508.

Almost surely, 2^139667916 is an apocalyptic number.

It is an amenable number.

139667916 is an abundant number, since it is smaller than the sum of its proper divisors (186223916).

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

139667916 is a wasteful number, since it uses less digits than its factorization.

139667916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11639000 (or 11638998 counting only the distinct ones).

The product of its digits is 367416, while the sum is 48.

The square root of 139667916 is about 11818.1181243039. The cubic root of 139667916 is about 518.8385269925.

The spelling of 139667916 in words is "one hundred thirty-nine million, six hundred sixty-seven thousand, nine hundred sixteen".