12158807 has 8 divisors (see below), whose sum is σ = 12403584. Its totient is φ = 11916288.

The previous prime is 12158777. The next prime is 12158813. The reversal of 12158807 is 70885121.

It is a happy number.

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 12158807 - 2¹⁴ = 12142423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12158407) 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, 13658 + ... + 14520.

It is an arithmetic number, because the mean of its divisors is an integer number (1550448).

Almost surely, 2^12158807 is an apocalyptic number.

12158807 is a deficient number, since it is larger than the sum of its proper divisors (244777).

12158807 is an equidigital number, since it uses as much as digits as its factorization.

With its predecessor (12158806) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1129).

12158807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 12158807 is about 3486.9480925302. The cubic root of 12158807 is about 229.9483626989.

The spelling of 12158807 in words is "twelve million, one hundred fifty-eight thousand, eight hundred seven".