12372191 has 8 divisors (see below), whose sum is σ = 13394304. Its totient is φ = 11360160.

The previous prime is 12372169. The next prime is 12372221. The reversal of 12372191 is 19127321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12372191 - 2⁶ = 12372127 is a prime.

It is a super-2 number, since 2×12372191² = 306142220280962, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12372191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12372121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146 + ... + 4976.

It is an arithmetic number, because the mean of its divisors is an integer number (1674288).

Almost surely, 2^12372191 is an apocalyptic number.

12372191 is a deficient number, since it is larger than the sum of its proper divisors (1022113).

12372191 is a wasteful number, since it uses less digits than its factorization.

12372191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5041.

The product of its digits is 756, while the sum is 26.

The square root of 12372191 is about 3517.4125433335. The cubic root of 12372191 is about 231.2857479676.

The spelling of 12372191 in words is "twelve million, three hundred seventy-two thousand, one hundred ninety-one".