3581022961 has 2 divisors, whose sum is σ = 3581022962. Its totient is φ = 3581022960.

The previous prime is 3581022947. The next prime is 3581023027. The reversal of 3581022961 is 1692201853.

3581022961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3537989361 + 43033600 = 59481^2 + 6560^2 .

It is an emirp because it is prime and its reverse (1692201853) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3581022961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3581022961.

It is not a weakly prime, because it can be changed into another prime (3581022931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1790511480 + 1790511481.

It is an arithmetic number, because the mean of its divisors is an integer number (1790511481).

Almost surely, 2^3581022961 is an apocalyptic number.

It is an amenable number.

3581022961 is a deficient number, since it is larger than the sum of its proper divisors (1).

3581022961 is an equidigital number, since it uses as much as digits as its factorization.

3581022961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 3581022961 is about 59841.6490498048. The cubic root of 3581022961 is about 1529.9211033405.

The spelling of 3581022961 in words is "three billion, five hundred eighty-one million, twenty-two thousand, nine hundred sixty-one".