12549172 has 12 divisors (see below), whose sum is σ = 22669696. Its totient is φ = 6072120.

The previous prime is 12549151. The next prime is 12549209. The reversal of 12549172 is 27194521.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

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, 50478 + ... + 50725.

Almost surely, 2^12549172 is an apocalyptic number.

It is an amenable number.

12549172 is a deficient number, since it is larger than the sum of its proper divisors (10120524).

12549172 is a wasteful number, since it uses less digits than its factorization.

12549172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101238 (or 101236 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 12549172 is about 3542.4810514666. The cubic root of 12549172 is about 232.3833584579.

It can be divided in two parts, 12549 and 172, that added together give a palindrome (12721).

The spelling of 12549172 in words is "twelve million, five hundred forty-nine thousand, one hundred seventy-two".