22162457 has 2 divisors, whose sum is σ = 22162458. Its totient is φ = 22162456.

The previous prime is 22162453. The next prime is 22162471. The reversal of 22162457 is 75426122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13512976 + 8649481 = 3676^2 + 2941^2 .

It is a cyclic number.

It is not a de Polignac number, because 22162457 - 2² = 22162453 is a prime.

It is not a weakly prime, because it can be changed into another prime (22162453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11081228 + 11081229.

It is an arithmetic number, because the mean of its divisors is an integer number (11081229).

Almost surely, 2^22162457 is an apocalyptic number.

It is an amenable number.

22162457 is a deficient number, since it is larger than the sum of its proper divisors (1).

22162457 is an equidigital number, since it uses as much as digits as its factorization.

22162457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 29.

The square root of 22162457 is about 4707.7018809606. The cubic root of 22162457 is about 280.8919557776.

Adding to 22162457 its reverse (75426122), we get a palindrome (97588579).

The spelling of 22162457 in words is "twenty-two million, one hundred sixty-two thousand, four hundred fifty-seven".