13172996 has 24 divisors (see below), whose sum is σ = 23589720. Its totient is φ = 6435072.

The previous prime is 13172983. The next prime is 13173001. The reversal of 13172996 is 69927131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9424900 + 3748096 = 3070^2 + 1936^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57410 + ... + 57638.

It is an arithmetic number, because the mean of its divisors is an integer number (982905).

Almost surely, 2^13172996 is an apocalyptic number.

It is an amenable number.

13172996 is a deficient number, since it is larger than the sum of its proper divisors (10416724).

13172996 is a wasteful number, since it uses less digits than its factorization.

13172996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 501 counting only the distinct ones).

The product of its digits is 20412, while the sum is 38.

The square root of 13172996 is about 3629.4622191173. The cubic root of 13172996 is about 236.1718799595.

The spelling of 13172996 in words is "thirteen million, one hundred seventy-two thousand, nine hundred ninety-six".