12132979 has 4 divisors (see below), whose sum is σ = 12179376. Its totient is φ = 12086584.

The previous prime is 12132971. The next prime is 12133013. The reversal of 12132979 is 97923121.

It is a happy number.

12132979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97923121 = 23 ⋅4257527.

It is a cyclic number.

It is not a de Polignac number, because 12132979 - 2³ = 12132971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12132971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22804 + ... + 23329.

It is an arithmetic number, because the mean of its divisors is an integer number (3044844).

Almost surely, 2^12132979 is an apocalyptic number.

12132979 is a deficient number, since it is larger than the sum of its proper divisors (46397).

12132979 is an equidigital number, since it uses as much as digits as its factorization.

12132979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46396.

The product of its digits is 6804, while the sum is 34.

The square root of 12132979 is about 3483.2425984993. The cubic root of 12132979 is about 229.7854268503.

The spelling of 12132979 in words is "twelve million, one hundred thirty-two thousand, nine hundred seventy-nine".