581973061 has 2 divisors, whose sum is σ = 581973062. Its totient is φ = 581973060.

The previous prime is 581973023. The next prime is 581973083. The reversal of 581973061 is 160379185.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 437228100 + 144744961 = 20910^2 + 12031^2 .

It is a cyclic number.

It is not a de Polignac number, because 581973061 - 2¹⁷ = 581841989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (581974061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290986530 + 290986531.

It is an arithmetic number, because the mean of its divisors is an integer number (290986531).

Almost surely, 2^581973061 is an apocalyptic number.

It is an amenable number.

581973061 is a deficient number, since it is larger than the sum of its proper divisors (1).

581973061 is an equidigital number, since it uses as much as digits as its factorization.

581973061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 581973061 is about 24124.1178284305. The cubic root of 581973061 is about 834.8996788650.

The spelling of 581973061 in words is "five hundred eighty-one million, nine hundred seventy-three thousand, sixty-one".