13000739 has 6 divisors (see below), whose sum is σ = 13191540. Its totient is φ = 12812660.

The previous prime is 13000723. The next prime is 13000751. The reversal of 13000739 is 93700031.

It is not a de Polignac number, because 13000739 - 2⁴ = 13000723 is a prime.

It is a super-2 number, since 2×13000739² = 338038429092242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13000139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3752 + ... + 6330.

It is an arithmetic number, because the mean of its divisors is an integer number (2198590).

Almost surely, 2^13000739 is an apocalyptic number.

13000739 is a deficient number, since it is larger than the sum of its proper divisors (190801).

13000739 is an frugal number, since it uses more digits than its factorization.

13000739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721 (or 2650 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 23.

The square root of 13000739 is about 3605.6537548689. The cubic root of 13000739 is about 235.1379241654.

The spelling of 13000739 in words is "thirteen million, seven hundred thirty-nine", and thus it is an aban number.