13172036 has 6 divisors (see below), whose sum is σ = 23051070. Its totient is φ = 6586016.

The previous prime is 13172023. The next prime is 13172051. The reversal of 13172036 is 63027131.

It is a happy number.

13172036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12673600 + 498436 = 3560^2 + 706^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1646501 + ... + 1646508.

It is an arithmetic number, because the mean of its divisors is an integer number (3841845).

Almost surely, 2^13172036 is an apocalyptic number.

It is an amenable number.

13172036 is a deficient number, since it is larger than the sum of its proper divisors (9879034).

13172036 is a wasteful number, since it uses less digits than its factorization.

13172036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3293013 (or 3293011 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 13172036 is about 3629.3299657099. The cubic root of 13172036 is about 236.1661427045.

Adding to 13172036 its reverse (63027131), we get a palindrome (76199167).

The spelling of 13172036 in words is "thirteen million, one hundred seventy-two thousand, thirty-six".