13075144 has 8 divisors (see below), whose sum is σ = 24515910. Its totient is φ = 6537568.

The previous prime is 13075141. The next prime is 13075151. The reversal of 13075144 is 44157031.

It can be written as a sum of positive squares in only one way, i.e., 8191044 + 4884100 = 2862^2 + 2210^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13075141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817189 + ... + 817204.

Almost surely, 2^13075144 is an apocalyptic number.

It is an amenable number.

13075144 is a deficient number, since it is larger than the sum of its proper divisors (11440766).

13075144 is a wasteful number, since it uses less digits than its factorization.

13075144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634399 (or 1634395 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 13075144 is about 3615.9568581497. The cubic root of 13075144 is about 235.5856465784.

The spelling of 13075144 in words is "thirteen million, seventy-five thousand, one hundred forty-four".