581461493 has 2 divisors, whose sum is σ = 581461494. Its totient is φ = 581461492.

The previous prime is 581461403. The next prime is 581461537. The reversal of 581461493 is 394164185.

581461493 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 can be written as a sum of positive squares in only one way, i.e., 341769169 + 239692324 = 18487^2 + 15482^2 .

It is a cyclic number.

It is not a de Polignac number, because 581461493 - 2¹² = 581457397 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 581461493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (581461403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290730746 + 290730747.

It is an arithmetic number, because the mean of its divisors is an integer number (290730747).

Almost surely, 2^581461493 is an apocalyptic number.

It is an amenable number.

581461493 is a deficient number, since it is larger than the sum of its proper divisors (1).

581461493 is an equidigital number, since it uses as much as digits as its factorization.

581461493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 41.

The square root of 581461493 is about 24113.5126640645. The cubic root of 581461493 is about 834.6549750034.

The spelling of 581461493 in words is "five hundred eighty-one million, four hundred sixty-one thousand, four hundred ninety-three".