13163144 has 16 divisors (see below), whose sum is σ = 24901020. Its totient is φ = 6522880.

The previous prime is 13163131. The next prime is 13163159. The reversal of 13163144 is 44136131.

It can be written as a sum of positive squares in 2 ways, for example, as 13032100 + 131044 = 3610^2 + 362^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6377 + ... + 8184.

Almost surely, 2^13163144 is an apocalyptic number.

It is an amenable number.

13163144 is a deficient number, since it is larger than the sum of its proper divisors (11737876).

13163144 is a wasteful number, since it uses less digits than its factorization.

13163144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14680 (or 14676 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 13163144 is about 3628.1047393922. The cubic root of 13163144 is about 236.1129881260.

Adding to 13163144 its reverse (44136131), we get a palindrome (57299275).

The spelling of 13163144 in words is "thirteen million, one hundred sixty-three thousand, one hundred forty-four".