139691704 has 32 divisors (see below), whose sum is σ = 274982400. Its totient is φ = 66440160.

The previous prime is 139691683. The next prime is 139691707. The reversal of 139691704 is 407196931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139691707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9859 + ... + 19405.

It is an arithmetic number, because the mean of its divisors is an integer number (8593200).

Almost surely, 2^139691704 is an apocalyptic number.

It is an amenable number.

139691704 is a deficient number, since it is larger than the sum of its proper divisors (135290696).

139691704 is a wasteful number, since it uses less digits than its factorization.

139691704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9643 (or 9639 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 139691704 is about 11819.1245022633. The cubic root of 139691704 is about 518.8679812165.

The spelling of 139691704 in words is "one hundred thirty-nine million, six hundred ninety-one thousand, seven hundred four".