13257144 has 48 divisors (see below), whose sum is σ = 38020320. Its totient is φ = 4158720.

The previous prime is 13257143. The next prime is 13257151. The reversal of 13257144 is 44175231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13257143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4192 + ... + 6639.

It is an arithmetic number, because the mean of its divisors is an integer number (792090).

Almost surely, 2^13257144 is an apocalyptic number.

It is an amenable number.

13257144 is an abundant number, since it is smaller than the sum of its proper divisors (24763176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13257144 is a wasteful number, since it uses less digits than its factorization.

13257144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10860 (or 10853 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 13257144 is about 3641.0361162724. The cubic root of 13257144 is about 236.6736950457.

The spelling of 13257144 in words is "thirteen million, two hundred fifty-seven thousand, one hundred forty-four".