12758172 has 24 divisors (see below), whose sum is σ = 34022016. Its totient is φ = 3645168.

The previous prime is 12758167. The next prime is 12758183. The reversal of 12758172 is 27185721.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75858 + ... + 76025.

It is an arithmetic number, because the mean of its divisors is an integer number (1417584).

Almost surely, 2^12758172 is an apocalyptic number.

12758172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12758172 is an abundant number, since it is smaller than the sum of its proper divisors (21263844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12758172 is a wasteful number, since it uses less digits than its factorization.

12758172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151897 (or 151895 counting only the distinct ones).

The product of its digits is 7840, while the sum is 33.

The square root of 12758172 is about 3571.8583398562. The cubic root of 12758172 is about 233.6663372227. Note that the first 3 decimals are identical.

The spelling of 12758172 in words is "twelve million, seven hundred fifty-eight thousand, one hundred seventy-two".