22345249 has 2 divisors, whose sum is σ = 22345250. Its totient is φ = 22345248.

The previous prime is 22345231. The next prime is 22345261. The reversal of 22345249 is 94254322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21790224 + 555025 = 4668^2 + 745^2 .

It is a cyclic number.

It is not a de Polignac number, because 22345249 - 2⁹ = 22344737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22345249.

It is not a weakly prime, because it can be changed into another prime (22345289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11172624 + 11172625.

It is an arithmetic number, because the mean of its divisors is an integer number (11172625).

Almost surely, 2^22345249 is an apocalyptic number.

It is an amenable number.

22345249 is a deficient number, since it is larger than the sum of its proper divisors (1).

22345249 is an equidigital number, since it uses as much as digits as its factorization.

22345249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 31.

The square root of 22345249 is about 4727.0761576264. The cubic root of 22345249 is about 281.6620912779.

The spelling of 22345249 in words is "twenty-two million, three hundred forty-five thousand, two hundred forty-nine".