12172182 has 32 divisors (see below), whose sum is σ = 27181440. Its totient is φ = 3601920.

The previous prime is 12172177. The next prime is 12172183. The reversal of 12172182 is 28127121.

It is a super-2 number, since 2×12172182² = 296324029282248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12172183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 694 + ... + 4982.

It is an arithmetic number, because the mean of its divisors is an integer number (849420).

Almost surely, 2^12172182 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12172182, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13590720).

12172182 is an abundant number, since it is smaller than the sum of its proper divisors (15009258).

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

12172182 is a wasteful number, since it uses less digits than its factorization.

12172182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4348.

The product of its digits is 448, while the sum is 24.

The square root of 12172182 is about 3488.8654316267. The cubic root of 12172182 is about 230.0326481695.

The spelling of 12172182 in words is "twelve million, one hundred seventy-two thousand, one hundred eighty-two".