2130979 has 2 divisors, whose sum is σ = 2130980. Its totient is φ = 2130978.

The previous prime is 2130959. The next prime is 2131013. The reversal of 2130979 is 9790312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2130979 - 2¹⁵ = 2098211 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2130979.

It is not a weakly prime, because it can be changed into another prime (2130929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065489 + 1065490.

It is an arithmetic number, because the mean of its divisors is an integer number (1065490).

2^2130979 is an apocalyptic number.

2130979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130979 is an equidigital number, since it uses as much as digits as its factorization.

2130979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 2130979 is about 1459.7873132755. The cubic root of 2130979 is about 128.6845446028.

The spelling of 2130979 in words is "two million, one hundred thirty thousand, nine hundred seventy-nine".