22463591 has 2 divisors, whose sum is σ = 22463592. Its totient is φ = 22463590.

The previous prime is 22463569. The next prime is 22463593. The reversal of 22463591 is 19536422.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22463591 - 2⁶ = 22463527 is a prime.

It is a super-2 number, since 2×22463591² = 1009225841230562, which contains 22 as substring.

Together with 22463593, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1416488 and since 22463591 and 1416488 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22463593) 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, 11231795 + 11231796.

It is an arithmetic number, because the mean of its divisors is an integer number (11231796).

Almost surely, 2^22463591 is an apocalyptic number.

22463591 is a deficient number, since it is larger than the sum of its proper divisors (1).

22463591 is an equidigital number, since it uses as much as digits as its factorization.

22463591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 22463591 is about 4739.5770908384. The cubic root of 22463591 is about 282.1584500946.

The spelling of 22463591 in words is "twenty-two million, four hundred sixty-three thousand, five hundred ninety-one".