13149544 has 8 divisors (see below), whose sum is σ = 24655410. Its totient is φ = 6574768.

The previous prime is 13149523. The next prime is 13149571. The reversal of 13149544 is 44594131.

It can be written as a sum of positive squares in only one way, i.e., 6708100 + 6441444 = 2590^2 + 2538^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 821839 + ... + 821854.

Almost surely, 2^13149544 is an apocalyptic number.

It is an amenable number.

13149544 is a deficient number, since it is larger than the sum of its proper divisors (11505866).

13149544 is a wasteful number, since it uses less digits than its factorization.

13149544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643699 (or 1643695 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 13149544 is about 3626.2299982213. The cubic root of 13149544 is about 236.0316437508.

The spelling of 13149544 in words is "thirteen million, one hundred forty-nine thousand, five hundred forty-four".