22023091 has 2 divisors, whose sum is σ = 22023092. Its totient is φ = 22023090.

The previous prime is 22023083. The next prime is 22023149. The reversal of 22023091 is 19032022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22023091 - 2³ = 22023083 is a prime.

It is not a weakly prime, because it can be changed into another prime (22023031) 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, 11011545 + 11011546.

It is an arithmetic number, because the mean of its divisors is an integer number (11011546).

Almost surely, 2^22023091 is an apocalyptic number.

22023091 is a deficient number, since it is larger than the sum of its proper divisors (1).

22023091 is an equidigital number, since it uses as much as digits as its factorization.

22023091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 22023091 is about 4692.8766231385. The cubic root of 22023091 is about 280.3019319542.

The spelling of 22023091 in words is "twenty-two million, twenty-three thousand, ninety-one".