13016639 has 8 divisors (see below), whose sum is σ = 13562640. Its totient is φ = 12481600.

The previous prime is 13016623. The next prime is 13016677. The reversal of 13016639 is 93661031.

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 13016639 - 2⁴ = 13016623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13016699) 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, 272 + ... + 5109.

It is an arithmetic number, because the mean of its divisors is an integer number (1695330).

Almost surely, 2^13016639 is an apocalyptic number.

13016639 is a deficient number, since it is larger than the sum of its proper divisors (546001).

13016639 is an equidigital number, since it uses as much as digits as its factorization.

13016639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5481.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 13016639 is about 3607.8579517492. The cubic root of 13016639 is about 235.2337435872.

The spelling of 13016639 in words is "thirteen million, sixteen thousand, six hundred thirty-nine".