13375144 has 32 divisors (see below), whose sum is σ = 26392320. Its totient is φ = 6342336.

The previous prime is 13375139. The next prime is 13375147. The reversal of 13375144 is 44157331.

It is not an unprimeable number, because it can be changed into a prime (13375147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28657 + ... + 29119.

It is an arithmetic number, because the mean of its divisors is an integer number (824760).

Almost surely, 2^13375144 is an apocalyptic number.

It is an amenable number.

13375144 is a deficient number, since it is larger than the sum of its proper divisors (13017176).

13375144 is a wasteful number, since it uses less digits than its factorization.

13375144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 645 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 13375144 is about 3657.2043968037. The cubic root of 13375144 is about 237.3738218037.

The spelling of 13375144 in words is "thirteen million, three hundred seventy-five thousand, one hundred forty-four".