22163149 has 2 divisors, whose sum is σ = 22163150. Its totient is φ = 22163148.

The previous prime is 22163143. The next prime is 22163159. The reversal of 22163149 is 94136122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21325924 + 837225 = 4618^2 + 915^2 .

It is a cyclic number.

It is not a de Polignac number, because 22163149 - 2⁵ = 22163117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22163143) 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, 11081574 + 11081575.

It is an arithmetic number, because the mean of its divisors is an integer number (11081575).

Almost surely, 2^22163149 is an apocalyptic number.

It is an amenable number.

22163149 is a deficient number, since it is larger than the sum of its proper divisors (1).

22163149 is an equidigital number, since it uses as much as digits as its factorization.

22163149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 22163149 is about 4707.7753769695. The cubic root of 22163149 is about 280.8948792683.

The spelling of 22163149 in words is "twenty-two million, one hundred sixty-three thousand, one hundred forty-nine".