13049139 has 8 divisors (see below), whose sum is σ = 17429440. Its totient is φ = 8684136.

The previous prime is 13049137. The next prime is 13049147. The reversal of 13049139 is 93194031.

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

It is not a de Polignac number, because 13049139 - 2¹ = 13049137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13049137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1657 + ... + 5370.

It is an arithmetic number, because the mean of its divisors is an integer number (2178680).

Almost surely, 2^13049139 is an apocalyptic number.

13049139 is a deficient number, since it is larger than the sum of its proper divisors (4380301).

13049139 is an equidigital number, since it uses as much as digits as its factorization.

13049139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7649.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 13049139 is about 3612.3592014084. The cubic root of 13049139 is about 235.4293584129.

The spelling of 13049139 in words is "thirteen million, forty-nine thousand, one hundred thirty-nine".