22366961 has 2 divisors, whose sum is σ = 22366962. Its totient is φ = 22366960.

The previous prime is 22366943. The next prime is 22366999. The reversal of 22366961 is 16966322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18490000 + 3876961 = 4300^2 + 1969^2 .

It is a cyclic number.

It is not a de Polignac number, because 22366961 - 2²² = 18172657 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22366921) 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, 11183480 + 11183481.

It is an arithmetic number, because the mean of its divisors is an integer number (11183481).

Almost surely, 2^22366961 is an apocalyptic number.

It is an amenable number.

22366961 is a deficient number, since it is larger than the sum of its proper divisors (1).

22366961 is an equidigital number, since it uses as much as digits as its factorization.

22366961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 35.

The square root of 22366961 is about 4729.3721570627. The cubic root of 22366961 is about 281.7532884071.

The spelling of 22366961 in words is "twenty-two million, three hundred sixty-six thousand, nine hundred sixty-one".