12989158 has 64 divisors (see below), whose sum is σ = 26127360. Its totient is φ = 4701312.

The previous prime is 12989153. The next prime is 12989159. The reversal of 12989158 is 85198921.

12989158 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12989153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121341 + ... + 121447.

It is an arithmetic number, because the mean of its divisors is an integer number (408240).

Almost surely, 2^12989158 is an apocalyptic number.

12989158 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

12989158 is a wasteful number, since it uses less digits than its factorization.

12989158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181.

The product of its digits is 51840, while the sum is 43.

The square root of 12989158 is about 3604.0474469685. The cubic root of 12989158 is about 235.0680834873.

The spelling of 12989158 in words is "twelve million, nine hundred eighty-nine thousand, one hundred fifty-eight".