13013648 has 20 divisors (see below), whose sum is σ = 25466748. Its totient is φ = 6441600.

The previous prime is 13013647. The next prime is 13013657. The reversal of 13013648 is 84631031.

It can be written as a sum of positive squares in 2 ways, for example, as 11505664 + 1507984 = 3392^2 + 1228^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13013641) 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, 2411 + ... + 5642.

Almost surely, 2^13013648 is an apocalyptic number.

It is an amenable number.

13013648 is a deficient number, since it is larger than the sum of its proper divisors (12453100).

13013648 is a wasteful number, since it uses less digits than its factorization.

13013648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8162 (or 8156 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 13013648 is about 3607.4434160497. The cubic root of 13013648 is about 235.2157246494.

Adding to 13013648 its reverse (84631031), we get a palindrome (97644679).

The spelling of 13013648 in words is "thirteen million, thirteen thousand, six hundred forty-eight".