12472156 has 12 divisors (see below), whose sum is σ = 21854560. Its totient is φ = 6228000.

The previous prime is 12472153. The next prime is 12472171. The reversal of 12472156 is 65127421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12472153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2656 + ... + 5656.

Almost surely, 2^12472156 is an apocalyptic number.

It is an amenable number.

12472156 is a deficient number, since it is larger than the sum of its proper divisors (9382404).

12472156 is a wasteful number, since it uses less digits than its factorization.

12472156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044 (or 4042 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 12472156 is about 3531.5939743974. The cubic root of 12472156 is about 231.9069930403.

Adding to 12472156 its reverse (65127421), we get a palindrome (77599577).

It can be divided in two parts, 1247 and 2156, that added together give a triangular number (3403 = T₈₂).

The spelling of 12472156 in words is "twelve million, four hundred seventy-two thousand, one hundred fifty-six".