22954681 has 2 divisors, whose sum is σ = 22954682. Its totient is φ = 22954680.

The previous prime is 22954643. The next prime is 22954691. The reversal of 22954681 is 18645922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22240656 + 714025 = 4716^2 + 845^2 .

It is a cyclic number.

It is not a de Polignac number, because 22954681 - 2⁷ = 22954553 is a prime.

It is a super-2 number, since 2×22954681² = 1053834759623522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22954681.

It is not a weakly prime, because it can be changed into another prime (22954691) 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, 11477340 + 11477341.

It is an arithmetic number, because the mean of its divisors is an integer number (11477341).

Almost surely, 2^22954681 is an apocalyptic number.

It is an amenable number.

22954681 is a deficient number, since it is larger than the sum of its proper divisors (1).

22954681 is an equidigital number, since it uses as much as digits as its factorization.

22954681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 37.

The square root of 22954681 is about 4791.1043612094. The cubic root of 22954681 is about 284.1997908123.

The spelling of 22954681 in words is "twenty-two million, nine hundred fifty-four thousand, six hundred eighty-one".