13045739 has 4 divisors (see below), whose sum is σ = 14909424. Its totient is φ = 11182056.

The previous prime is 13045729. The next prime is 13045751. The reversal of 13045739 is 93754031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13045739 - 2¹² = 13041643 is a prime.

It is a super-2 number, since 2×13045739² = 340382612112242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13045729) 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, 931832 + ... + 931845.

It is an arithmetic number, because the mean of its divisors is an integer number (3727356).

Almost surely, 2^13045739 is an apocalyptic number.

13045739 is a deficient number, since it is larger than the sum of its proper divisors (1863685).

13045739 is an equidigital number, since it uses as much as digits as its factorization.

13045739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863684.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 13045739 is about 3611.8885641725. Note that the first 3 decimals coincide. The cubic root of 13045739 is about 235.4089093153.

The spelling of 13045739 in words is "thirteen million, forty-five thousand, seven hundred thirty-nine".