22851457 has 2 divisors, whose sum is σ = 22851458. Its totient is φ = 22851456.

The previous prime is 22851403. The next prime is 22851481. The reversal of 22851457 is 75415822.

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., 16008001 + 6843456 = 4001^2 + 2616^2 .

It is a cyclic number.

It is not a de Polignac number, because 22851457 - 2⁷ = 22851329 is a prime.

It is not a weakly prime, because it can be changed into another prime (22851497) 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, 11425728 + 11425729.

It is an arithmetic number, because the mean of its divisors is an integer number (11425729).

Almost surely, 2^22851457 is an apocalyptic number.

It is an amenable number.

22851457 is a deficient number, since it is larger than the sum of its proper divisors (1).

22851457 is an equidigital number, since it uses as much as digits as its factorization.

22851457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 34.

The square root of 22851457 is about 4780.3197591793. The cubic root of 22851457 is about 283.7731483764.

The spelling of 22851457 in words is "twenty-two million, eight hundred fifty-one thousand, four hundred fifty-seven".