2961590581 has 2 divisors, whose sum is σ = 2961590582. Its totient is φ = 2961590580.

The previous prime is 2961590563. The next prime is 2961590627. The reversal of 2961590581 is 1850951692.

It is an a-pointer prime, because the next prime (2961590627) can be obtained adding 2961590581 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1975002481 + 986588100 = 44441^2 + 31410^2 .

It is a cyclic number.

It is not a de Polignac number, because 2961590581 - 2⁹ = 2961590069 is a prime.

It is a super-2 number, since 2×2961590581² = 17542037538935835122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2961593581) 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, 1480795290 + 1480795291.

It is an arithmetic number, because the mean of its divisors is an integer number (1480795291).

Almost surely, 2^2961590581 is an apocalyptic number.

It is an amenable number.

2961590581 is a deficient number, since it is larger than the sum of its proper divisors (1).

2961590581 is an equidigital number, since it uses as much as digits as its factorization.

2961590581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 46.

The square root of 2961590581 is about 54420.4978018393. The cubic root of 2961590581 is about 1436.0680060605.

The spelling of 2961590581 in words is "two billion, nine hundred sixty-one million, five hundred ninety thousand, five hundred eighty-one".