13125939 has 16 divisors (see below), whose sum is σ = 18380544. Its totient is φ = 8316000.

The previous prime is 13125923. The next prime is 13125947. The reversal of 13125939 is 93952131.

It is not a de Polignac number, because 13125939 - 2⁴ = 13125923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13125439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11964 + ... + 13014.

It is an arithmetic number, because the mean of its divisors is an integer number (1148784).

Almost surely, 2^13125939 is an apocalyptic number.

13125939 is a deficient number, since it is larger than the sum of its proper divisors (5254605).

13125939 is a wasteful number, since it uses less digits than its factorization.

13125939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258.

The product of its digits is 7290, while the sum is 33.

The square root of 13125939 is about 3622.9737785416. The cubic root of 13125939 is about 235.8903241701.

The spelling of 13125939 in words is "thirteen million, one hundred twenty-five thousand, nine hundred thirty-nine".