139258716 has 12 divisors (see below), whose sum is σ = 324937032. Its totient is φ = 46419568.

The previous prime is 139258711. The next prime is 139258739. The reversal of 139258716 is 617852931.

139258716 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139258711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5802435 + ... + 5802458.

It is an arithmetic number, because the mean of its divisors is an integer number (27078086).

Almost surely, 2^139258716 is an apocalyptic number.

It is an amenable number.

139258716 is an abundant number, since it is smaller than the sum of its proper divisors (185678316).

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

139258716 is a wasteful number, since it uses less digits than its factorization.

139258716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11604900 (or 11604898 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 139258716 is about 11800.7930241997. The cubic root of 139258716 is about 518.3313324732.

The spelling of 139258716 in words is "one hundred thirty-nine million, two hundred fifty-eight thousand, seven hundred sixteen".