22742453 has 2 divisors, whose sum is σ = 22742454. Its totient is φ = 22742452.

The previous prime is 22742443. The next prime is 22742471. The reversal of 22742453 is 35424722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15382084 + 7360369 = 3922^2 + 2713^2 .

It is a cyclic number.

It is not a de Polignac number, because 22742453 - 2⁶ = 22742389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22742443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11371226 + 11371227.

It is an arithmetic number, because the mean of its divisors is an integer number (11371227).

Almost surely, 2^22742453 is an apocalyptic number.

It is an amenable number.

22742453 is a deficient number, since it is larger than the sum of its proper divisors (1).

22742453 is an equidigital number, since it uses as much as digits as its factorization.

22742453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 29.

The square root of 22742453 is about 4768.9048008951. The cubic root of 22742453 is about 283.3212191668.

The spelling of 22742453 in words is "twenty-two million, seven hundred forty-two thousand, four hundred fifty-three".