22991063 has 2 divisors, whose sum is σ = 22991064. Its totient is φ = 22991062.

The previous prime is 22991051. The next prime is 22991069. The reversal of 22991063 is 36019922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22991063 - 2⁴ = 22991047 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22991069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11495531 + 11495532.

It is an arithmetic number, because the mean of its divisors is an integer number (11495532).

Almost surely, 2^22991063 is an apocalyptic number.

22991063 is a deficient number, since it is larger than the sum of its proper divisors (1).

22991063 is an equidigital number, since it uses as much as digits as its factorization.

22991063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 22991063 is about 4794.8996861248. The cubic root of 22991063 is about 284.3498589536.

The spelling of 22991063 in words is "twenty-two million, nine hundred ninety-one thousand, sixty-three".