13139008 has 14 divisors (see below), whose sum is σ = 26072846. Its totient is φ = 6569472.

The previous prime is 13138997. The next prime is 13139017. The reversal of 13139008 is 80093131.

It can be written as a sum of positive squares in only one way, i.e., 12446784 + 692224 = 3528^2 + 832^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102585 + ... + 102712.

Almost surely, 2^13139008 is an apocalyptic number.

It is an amenable number.

13139008 is a deficient number, since it is larger than the sum of its proper divisors (12933838).

13139008 is an equidigital number, since it uses as much as digits as its factorization.

13139008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205309 (or 205299 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 13139008 is about 3624.7769586555. The cubic root of 13139008 is about 235.9685872199.

The spelling of 13139008 in words is "thirteen million, one hundred thirty-nine thousand, eight".