22995281 has 2 divisors, whose sum is σ = 22995282. Its totient is φ = 22995280.

The previous prime is 22995277. The next prime is 22995293. The reversal of 22995281 is 18259922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12138256 + 10857025 = 3484^2 + 3295^2 .

It is a cyclic number.

It is not a de Polignac number, because 22995281 - 2² = 22995277 is a prime.

It is a super-2 number, since 2×22995281² = 1057565896537922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22935281) 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, 11497640 + 11497641.

It is an arithmetic number, because the mean of its divisors is an integer number (11497641).

Almost surely, 2^22995281 is an apocalyptic number.

It is an amenable number.

22995281 is a deficient number, since it is larger than the sum of its proper divisors (1).

22995281 is an equidigital number, since it uses as much as digits as its factorization.

22995281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 38.

The square root of 22995281 is about 4795.3395083143. The cubic root of 22995281 is about 284.3672470776.

The spelling of 22995281 in words is "twenty-two million, nine hundred ninety-five thousand, two hundred eighty-one".