12992158 has 4 divisors (see below), whose sum is σ = 19488240. Its totient is φ = 6496078.

The previous prime is 12992153. The next prime is 12992159. The reversal of 12992158 is 85129921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85129921 = 1117 ⋅76213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12992153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3248038 + ... + 3248041.

It is an arithmetic number, because the mean of its divisors is an integer number (4872060).

Almost surely, 2^12992158 is an apocalyptic number.

12992158 is a deficient number, since it is larger than the sum of its proper divisors (6496082).

12992158 is an equidigital number, since it uses as much as digits as its factorization.

12992158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6496081.

The product of its digits is 12960, while the sum is 37.

The square root of 12992158 is about 3604.4636216780. The cubic root of 12992158 is about 235.0861793476.

The spelling of 12992158 in words is "twelve million, nine hundred ninety-two thousand, one hundred fifty-eight".