22975181 has 2 divisors, whose sum is σ = 22975182. Its totient is φ = 22975180.

The previous prime is 22975159. The next prime is 22975207. The reversal of 22975181 is 18157922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20557156 + 2418025 = 4534^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 22975181 - 2¹⁴ = 22958797 is a prime.

It is a super-2 number, since 2×22975181² = 1055717883965522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22975081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11487590 + 11487591.

It is an arithmetic number, because the mean of its divisors is an integer number (11487591).

Almost surely, 2^22975181 is an apocalyptic number.

It is an amenable number.

22975181 is a deficient number, since it is larger than the sum of its proper divisors (1).

22975181 is an equidigital number, since it uses as much as digits as its factorization.

22975181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 35.

The square root of 22975181 is about 4793.2432652641. The cubic root of 22975181 is about 284.2843685101.

The spelling of 22975181 in words is "twenty-two million, nine hundred seventy-five thousand, one hundred eighty-one".