12172370 has 16 divisors (see below), whose sum is σ = 25040448. Its totient is φ = 4173360.

The previous prime is 12172361. The next prime is 12172387. The reversal of 12172370 is 7327121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86876 + ... + 87015.

It is an arithmetic number, because the mean of its divisors is an integer number (1565028).

Almost surely, 2^12172370 is an apocalyptic number.

12172370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12172370 is an abundant number, since it is smaller than the sum of its proper divisors (12868078).

12172370 is a wasteful number, since it uses less digits than its factorization.

12172370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173905.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 12172370 is about 3488.8923743790. The cubic root of 12172370 is about 230.0338324522.

Adding to 12172370 its reverse (7327121), we get a palindrome (19499491).

The spelling of 12172370 in words is "twelve million, one hundred seventy-two thousand, three hundred seventy".