12158000 has 40 divisors (see below), whose sum is σ = 29402880. Its totient is φ = 4862400.

The previous prime is 12157997. The next prime is 12158011. The reversal of 12158000 is 85121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 12158000.

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, 1040 + ... + 5039.

It is an arithmetic number, because the mean of its divisors is an integer number (735072).

Almost surely, 2^12158000 is an apocalyptic number.

12158000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12158000 is an abundant number, since it is smaller than the sum of its proper divisors (17244880).

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

12158000 is an equidigital number, since it uses as much as digits as its factorization.

12158000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6102 (or 6086 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 12158000 is about 3486.8323733727. The cubic root of 12158000 is about 229.9432752361.

The spelling of 12158000 in words is "twelve million, one hundred fifty-eight thousand".