139297711 has 24 divisors (see below), whose sum is σ = 173776736. Its totient is φ = 109278720.

The previous prime is 139297703. The next prime is 139297751. The reversal of 139297711 is 117792931.

139297711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 139297711 - 2³ = 139297703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139297751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73921 + ... + 75781.

Almost surely, 2^139297711 is an apocalyptic number.

139297711 is a deficient number, since it is larger than the sum of its proper divisors (34479025).

139297711 is a wasteful number, since it uses less digits than its factorization.

139297711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939 (or 1922 counting only the distinct ones).

The product of its digits is 23814, while the sum is 40.

The square root of 139297711 is about 11802.4451280233. The cubic root of 139297711 is about 518.3797087247.

The spelling of 139297711 in words is "one hundred thirty-nine million, two hundred ninety-seven thousand, seven hundred eleven".