13125739 has 8 divisors (see below), whose sum is σ = 14345280. Its totient is φ = 11910600.

The previous prime is 13125727. The next prime is 13125767. The reversal of 13125739 is 93752131.

13125739 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13125739 - 2⁷ = 13125611 is a prime.

It is a super-2 number, since 2×13125739² = 344570048592242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13125739.

It is not an unprimeable number, because it can be changed into a prime (13125779) 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, 10624 + ... + 11794.

It is an arithmetic number, because the mean of its divisors is an integer number (1793160).

Almost surely, 2^13125739 is an apocalyptic number.

13125739 is a deficient number, since it is larger than the sum of its proper divisors (1219541).

13125739 is a wasteful number, since it uses less digits than its factorization.

13125739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201.

The product of its digits is 5670, while the sum is 31.

The square root of 13125739 is about 3622.9461768014. The cubic root of 13125739 is about 235.8891260767.

The spelling of 13125739 in words is "thirteen million, one hundred twenty-five thousand, seven hundred thirty-nine".