581132963 has 2 divisors, whose sum is σ = 581132964. Its totient is φ = 581132962.

The previous prime is 581132933. The next prime is 581133023. The reversal of 581132963 is 369231185.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 581132963 - 2⁸ = 581132707 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (581132933) 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, 290566481 + 290566482.

It is an arithmetic number, because the mean of its divisors is an integer number (290566482).

Almost surely, 2^581132963 is an apocalyptic number.

581132963 is a deficient number, since it is larger than the sum of its proper divisors (1).

581132963 is an equidigital number, since it uses as much as digits as its factorization.

581132963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The square root of 581132963 is about 24106.6995459768. The cubic root of 581132963 is about 834.4977499983.

The spelling of 581132963 in words is "five hundred eighty-one million, one hundred thirty-two thousand, nine hundred sixty-three".