12172752 has 30 divisors (see below), whose sum is σ = 34067202. Its totient is φ = 4057536.

The previous prime is 12172751. The next prime is 12172753. The reversal of 12172752 is 25727121.

It is an interprime number because it is at equal distance from previous prime (12172751) and next prime (12172753).

It can be written as a sum of positive squares in only one way, i.e., 8156736 + 4016016 = 2856^2 + 2004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12172751) 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, 42123 + ... + 42410.

Almost surely, 2^12172752 is an apocalyptic number.

12172752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12172752 is an abundant number, since it is smaller than the sum of its proper divisors (21894450).

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

12172752 is a wasteful number, since it uses less digits than its factorization.

12172752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84547 (or 84538 counting only the distinct ones).

The product of its digits is 1960, while the sum is 27.

The square root of 12172752 is about 3488.9471191177. The cubic root of 12172752 is about 230.0362387764.

Adding to 12172752 its reverse (25727121), we get a palindrome (37899873).

It can be divided in two parts, 1217 and 2752, that added together give a square (3969 = 63²).

The spelling of 12172752 in words is "twelve million, one hundred seventy-two thousand, seven hundred fifty-two".