13172116 has 6 divisors (see below), whose sum is σ = 23051210. Its totient is φ = 6586056.

The previous prime is 13172113. The next prime is 13172141. The reversal of 13172116 is 61127131.

It can be written as a sum of positive squares in only one way, i.e., 12180100 + 992016 = 3490^2 + 996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13172113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1646511 + ... + 1646518.

Almost surely, 2^13172116 is an apocalyptic number.

It is an amenable number.

13172116 is a deficient number, since it is larger than the sum of its proper divisors (9879094).

13172116 is a wasteful number, since it uses less digits than its factorization.

13172116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3293033 (or 3293031 counting only the distinct ones).

The product of its digits is 252, while the sum is 22.

The square root of 13172116 is about 3629.3409870113. The cubic root of 13172116 is about 236.1666208197.

Adding to 13172116 its reverse (61127131), we get a palindrome (74299247).

The spelling of 13172116 in words is "thirteen million, one hundred seventy-two thousand, one hundred sixteen".