12156137 has 8 divisors (see below), whose sum is σ = 14036736. Its totient is φ = 10311552.

The previous prime is 12156119. The next prime is 12156149. The reversal of 12156137 is 73165121.

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 12156137 - 2⁸ = 12155881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12156107) 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, 8273 + ... + 9630.

It is an arithmetic number, because the mean of its divisors is an integer number (1754592).

Almost surely, 2^12156137 is an apocalyptic number.

It is an amenable number.

12156137 is a deficient number, since it is larger than the sum of its proper divisors (1880599).

12156137 is an equidigital number, since it uses as much as digits as its factorization.

12156137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18007.

The product of its digits is 1260, while the sum is 26.

The square root of 12156137 is about 3486.5652152226. The cubic root of 12156137 is about 229.9315297131.

The spelling of 12156137 in words is "twelve million, one hundred fifty-six thousand, one hundred thirty-seven".