12156630 has 16 divisors (see below), whose sum is σ = 29175984. Its totient is φ = 3241760.

The previous prime is 12156593. The next prime is 12156631. The reversal of 12156630 is 3665121.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 12156630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12156631) 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, 202581 + ... + 202640.

It is an arithmetic number, because the mean of its divisors is an integer number (1823499).

Almost surely, 2^12156630 is an apocalyptic number.

12156630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12156630 is an abundant number, since it is smaller than the sum of its proper divisors (17019354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12156630 is a wasteful number, since it uses less digits than its factorization.

12156630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405231.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 12156630 is about 3486.6359144597. The cubic root of 12156630 is about 229.9346380118.

The spelling of 12156630 in words is "twelve million, one hundred fifty-six thousand, six hundred thirty".