22245869 has 2 divisors, whose sum is σ = 22245870. Its totient is φ = 22245868.

The previous prime is 22245859. The next prime is 22245889. The reversal of 22245869 is 96854222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11812969 + 10432900 = 3437^2 + 3230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22245869 is a prime.

It is a super-2 number, since 2×22245869² = 989757375130322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22245859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11122934 + 11122935.

It is an arithmetic number, because the mean of its divisors is an integer number (11122935).

Almost surely, 2^22245869 is an apocalyptic number.

It is an amenable number.

22245869 is a deficient number, since it is larger than the sum of its proper divisors (1).

22245869 is an equidigital number, since it uses as much as digits as its factorization.

22245869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 38.

The square root of 22245869 is about 4716.5526605774. The cubic root of 22245869 is about 281.2439087405.

The spelling of 22245869 in words is "twenty-two million, two hundred forty-five thousand, eight hundred sixty-nine".