12157190 has 8 divisors (see below), whose sum is σ = 21882960. Its totient is φ = 4862872.

The previous prime is 12157153. The next prime is 12157199. The reversal of 12157190 is 9175121.

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

It is a super-2 number, since 2×12157190² = 295594537392200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12157199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607850 + ... + 607869.

It is an arithmetic number, because the mean of its divisors is an integer number (2735370).

Almost surely, 2^12157190 is an apocalyptic number.

12157190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12157190 is a deficient number, since it is larger than the sum of its proper divisors (9725770).

12157190 is a wasteful number, since it uses less digits than its factorization.

12157190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215726.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 12157190 is about 3486.7162201705. The cubic root of 12157190 is about 229.9381686344.

The spelling of 12157190 in words is "twelve million, one hundred fifty-seven thousand, one hundred ninety".