2195579 has 2 divisors, whose sum is σ = 2195580. Its totient is φ = 2195578.

The previous prime is 2195563. The next prime is 2195581. The reversal of 2195579 is 9755912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2195579 - 2⁴ = 2195563 is a prime.

Together with 2195581, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2192579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097789 + 1097790.

It is an arithmetic number, because the mean of its divisors is an integer number (1097790).

2^2195579 is an apocalyptic number.

2195579 is a deficient number, since it is larger than the sum of its proper divisors (1).

2195579 is an equidigital number, since it uses as much as digits as its factorization.

2195579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28350, while the sum is 38.

The square root of 2195579 is about 1481.7486291541. The cubic root of 2195579 is about 129.9719663417.

The spelling of 2195579 in words is "two million, one hundred ninety-five thousand, five hundred seventy-nine".