12655172 has 6 divisors (see below), whose sum is σ = 22146558. Its totient is φ = 6327584.

The previous prime is 12655171. The next prime is 12655193. The reversal of 12655172 is 27155621.

It can be written as a sum of positive squares in only one way, i.e., 8386816 + 4268356 = 2896^2 + 2066^2 .

It is not an unprimeable number, because it can be changed into a prime (12655171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1581893 + ... + 1581900.

It is an arithmetic number, because the mean of its divisors is an integer number (3691093).

Almost surely, 2^12655172 is an apocalyptic number.

It is an amenable number.

12655172 is a deficient number, since it is larger than the sum of its proper divisors (9491386).

12655172 is a wasteful number, since it uses less digits than its factorization.

12655172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163797 (or 3163795 counting only the distinct ones).

The product of its digits is 4200, while the sum is 29.

The square root of 12655172 is about 3557.4108562268. The cubic root of 12655172 is about 233.0358212715.

The spelling of 12655172 in words is "twelve million, six hundred fifty-five thousand, one hundred seventy-two".