12156355 has 8 divisors (see below), whose sum is σ = 14624064. Its totient is φ = 9700800.

The previous prime is 12156337. The next prime is 12156359. The reversal of 12156355 is 55365121.

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

It is not a de Polignac number, because 12156355 - 2⁵ = 12156323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12156359) 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, 666 + ... + 4975.

It is an arithmetic number, because the mean of its divisors is an integer number (1828008).

Almost surely, 2^12156355 is an apocalyptic number.

12156355 is a deficient number, since it is larger than the sum of its proper divisors (2467709).

12156355 is an equidigital number, since it uses as much as digits as its factorization.

12156355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6077.

The product of its digits is 4500, while the sum is 28.

The square root of 12156355 is about 3486.5964779424. The cubic root of 12156355 is about 229.9329041842.

The spelling of 12156355 in words is "twelve million, one hundred fifty-six thousand, three hundred fifty-five".