1220290579 has 2 divisors, whose sum is σ = 1220290580. Its totient is φ = 1220290578.

The previous prime is 1220290567. The next prime is 1220290607. The reversal of 1220290579 is 9750920221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220290579 - 2²⁵ = 1186736147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220290529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610145289 + 610145290.

It is an arithmetic number, because the mean of its divisors is an integer number (610145290).

Almost surely, 2^1220290579 is an apocalyptic number.

1220290579 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220290579 is an equidigital number, since it uses as much as digits as its factorization.

1220290579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 1220290579 is about 34932.6577717757. The cubic root of 1220290579 is about 1068.6145573764.

The spelling of 1220290579 in words is "one billion, two hundred twenty million, two hundred ninety thousand, five hundred seventy-nine".