2149379 has 2 divisors, whose sum is σ = 2149380. Its totient is φ = 2149378.

The previous prime is 2149351. The next prime is 2149391. The reversal of 2149379 is 9739412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2149379 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2149349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074689 + 1074690.

It is an arithmetic number, because the mean of its divisors is an integer number (1074690).

2^2149379 is an apocalyptic number.

2149379 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149379 is an equidigital number, since it uses as much as digits as its factorization.

2149379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 2149379 is about 1466.0760553259. The cubic root of 2149379 is about 129.0538604887.

The spelling of 2149379 in words is "two million, one hundred forty-nine thousand, three hundred seventy-nine".