581480923 has 2 divisors, whose sum is σ = 581480924. Its totient is φ = 581480922.

The previous prime is 581480897. The next prime is 581480947. The reversal of 581480923 is 329084185.

581480923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 581480923 - 2²¹ = 579383771 is a prime.

It is not a weakly prime, because it can be changed into another prime (581480023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290740461 + 290740462.

It is an arithmetic number, because the mean of its divisors is an integer number (290740462).

Almost surely, 2^581480923 is an apocalyptic number.

581480923 is a deficient number, since it is larger than the sum of its proper divisors (1).

581480923 is an equidigital number, since it uses as much as digits as its factorization.

581480923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 581480923 is about 24113.9155468373. The cubic root of 581480923 is about 834.6642717873.

The spelling of 581480923 in words is "five hundred eighty-one million, four hundred eighty thousand, nine hundred twenty-three".