12158830 has 16 divisors (see below), whose sum is σ = 22641120. Its totient is φ = 4695712.

The previous prime is 12158813. The next prime is 12158849. The reversal of 12158830 is 3885121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20674 + ... + 21253.

It is an arithmetic number, because the mean of its divisors is an integer number (1415070).

Almost surely, 2^12158830 is an apocalyptic number.

12158830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12158830 is a deficient number, since it is larger than the sum of its proper divisors (10482290).

12158830 is a wasteful number, since it uses less digits than its factorization.

12158830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41963.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 12158830 is about 3486.9513905416. The cubic root of 12158830 is about 229.9485076914.

The spelling of 12158830 in words is "twelve million, one hundred fifty-eight thousand, eight hundred thirty".