13739513 has 2 divisors, whose sum is σ = 13739514. Its totient is φ = 13739512.

The previous prime is 13739501. The next prime is 13739521. The reversal of 13739513 is 31593731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11812969 + 1926544 = 3437^2 + 1388^2 .

It is a cyclic number.

It is not a de Polignac number, because 13739513 - 2⁴ = 13739497 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13739513.

It is not a weakly prime, because it can be changed into another prime (13739563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6869756 + 6869757.

It is an arithmetic number, because the mean of its divisors is an integer number (6869757).

Almost surely, 2^13739513 is an apocalyptic number.

It is an amenable number.

13739513 is a deficient number, since it is larger than the sum of its proper divisors (1).

13739513 is an equidigital number, since it uses as much as digits as its factorization.

13739513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8505, while the sum is 32.

The square root of 13739513 is about 3706.6849070295. The cubic root of 13739513 is about 239.5100711563.

The spelling of 13739513 in words is "thirteen million, seven hundred thirty-nine thousand, five hundred thirteen".