12537173 has 6 divisors (see below), whose sum is σ = 13780662. Its totient is φ = 11397320.

The previous prime is 12537167. The next prime is 12537181. The reversal of 12537173 is 37173521.

It can be written as a sum of positive squares in only one way, i.e., 8305924 + 4231249 = 2882^2 + 2057^2 .

It is not a de Polignac number, because 12537173 - 2⁴ = 12537157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12539173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51686 + ... + 51927.

It is an arithmetic number, because the mean of its divisors is an integer number (2296777).

Almost surely, 2^12537173 is an apocalyptic number.

It is an amenable number.

12537173 is a deficient number, since it is larger than the sum of its proper divisors (1243489).

12537173 is a wasteful number, since it uses less digits than its factorization.

12537173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103635 (or 103624 counting only the distinct ones).

The product of its digits is 4410, while the sum is 29.

The square root of 12537173 is about 3540.7870593980. The cubic root of 12537173 is about 232.3092697160.

The spelling of 12537173 in words is "twelve million, five hundred thirty-seven thousand, one hundred seventy-three".