22357249 has 2 divisors, whose sum is σ = 22357250. Its totient is φ = 22357248.

The previous prime is 22357241. The next prime is 22357253. The reversal of 22357249 is 94275322.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18766224 + 3591025 = 4332^2 + 1895^2 .

It is a cyclic number.

It is not a de Polignac number, because 22357249 - 2³ = 22357241 is a prime.

It is not a weakly prime, because it can be changed into another prime (22357241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11178624 + 11178625.

It is an arithmetic number, because the mean of its divisors is an integer number (11178625).

Almost surely, 2^22357249 is an apocalyptic number.

It is an amenable number.

22357249 is a deficient number, since it is larger than the sum of its proper divisors (1).

22357249 is an equidigital number, since it uses as much as digits as its factorization.

22357249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 34.

The square root of 22357249 is about 4728.3452708109. The cubic root of 22357249 is about 281.7125022957.

The spelling of 22357249 in words is "twenty-two million, three hundred fifty-seven thousand, two hundred forty-nine".