2133979 has 4 divisors (see below), whose sum is σ = 2139280. Its totient is φ = 2128680.

The previous prime is 2133973. The next prime is 2133991. The reversal of 2133979 is 9793312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2133979 - 2¹⁷ = 2002907 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 (2133973) 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, 1992 + ... + 2869.

It is an arithmetic number, because the mean of its divisors is an integer number (534820).

2^2133979 is an apocalyptic number.

2133979 is a deficient number, since it is larger than the sum of its proper divisors (5301).

2133979 is an equidigital number, since it uses as much as digits as its factorization.

2133979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5300.

The product of its digits is 10206, while the sum is 34.

The square root of 2133979 is about 1460.8144988328. The cubic root of 2133979 is about 128.7449038106.

The spelling of 2133979 in words is "two million, one hundred thirty-three thousand, nine hundred seventy-nine".