580139621 has 2 divisors, whose sum is σ = 580139622. Its totient is φ = 580139620.

The previous prime is 580139591. The next prime is 580139633. The reversal of 580139621 is 126931085.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 580135396 + 4225 = 24086^2 + 65^2 .

It is a cyclic number.

It is not a de Polignac number, because 580139621 - 2²⁶ = 513030757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (580139321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290069810 + 290069811.

It is an arithmetic number, because the mean of its divisors is an integer number (290069811).

Almost surely, 2^580139621 is an apocalyptic number.

It is an amenable number.

580139621 is a deficient number, since it is larger than the sum of its proper divisors (1).

580139621 is an equidigital number, since it uses as much as digits as its factorization.

580139621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 580139621 is about 24086.0877063918. The cubic root of 580139621 is about 834.0220043574.

The spelling of 580139621 in words is "five hundred eighty million, one hundred thirty-nine thousand, six hundred twenty-one".