22163157 has 12 divisors (see below), whose sum is σ = 32054880. Its totient is φ = 14756328.

The previous prime is 22163149. The next prime is 22163159. The reversal of 22163157 is 75136122.

It is a happy number.

22163157 is a `hidden beast` number, since 2 + 21 + 631 + 5 + 7 = 666.

It is not a de Polignac number, because 22163157 - 2³ = 22163149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22163157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22163159) 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 in 11 ways as a sum of consecutive naturals, for example, 10938 + ... + 12804.

It is an arithmetic number, because the mean of its divisors is an integer number (2671240).

Almost surely, 2^22163157 is an apocalyptic number.

It is an amenable number.

22163157 is a deficient number, since it is larger than the sum of its proper divisors (9891723).

22163157 is a wasteful number, since it uses less digits than its factorization.

22163157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3192 (or 3189 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 22163157 is about 4707.7762266276. The cubic root of 22163157 is about 280.8949130655.

Adding to 22163157 its reverse (75136122), we get a palindrome (97299279).

The spelling of 22163157 in words is "twenty-two million, one hundred sixty-three thousand, one hundred fifty-seven".