22746257 has 2 divisors, whose sum is σ = 22746258. Its totient is φ = 22746256.

The previous prime is 22746239. The next prime is 22746271. The reversal of 22746257 is 75264722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19704721 + 3041536 = 4439^2 + 1744^2 .

It is a cyclic number.

It is not a de Polignac number, because 22746257 - 2⁶ = 22746193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22746277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11373128 + 11373129.

It is an arithmetic number, because the mean of its divisors is an integer number (11373129).

Almost surely, 2^22746257 is an apocalyptic number.

It is an amenable number.

22746257 is a deficient number, since it is larger than the sum of its proper divisors (1).

22746257 is an equidigital number, since it uses as much as digits as its factorization.

22746257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 35.

The square root of 22746257 is about 4769.3036179300. The cubic root of 22746257 is about 283.3370147926.

The spelling of 22746257 in words is "twenty-two million, seven hundred forty-six thousand, two hundred fifty-seven".