22542269 has 2 divisors, whose sum is σ = 22542270. Its totient is φ = 22542268.

The previous prime is 22542263. The next prime is 22542313. The reversal of 22542269 is 96224522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14730244 + 7812025 = 3838^2 + 2795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22542269 is a prime.

It is a super-2 number, since 2×22542269² = 1016307783336722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22542263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11271134 + 11271135.

It is an arithmetic number, because the mean of its divisors is an integer number (11271135).

Almost surely, 2^22542269 is an apocalyptic number.

It is an amenable number.

22542269 is a deficient number, since it is larger than the sum of its proper divisors (1).

22542269 is an equidigital number, since it uses as much as digits as its factorization.

22542269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 22542269 is about 4747.8699434589. The cubic root of 22542269 is about 282.4874831951.

The spelling of 22542269 in words is "twenty-two million, five hundred forty-two thousand, two hundred sixty-nine".