22154162 has 12 divisors (see below), whose sum is σ = 35301930. Its totient is φ = 10425216.

The previous prime is 22154137. The next prime is 22154177. The reversal of 22154162 is 26145122.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 21893041 + 261121 = 4679^2 + 511^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18587 + ... + 19742.

Almost surely, 2^22154162 is an apocalyptic number.

22154162 is a deficient number, since it is larger than the sum of its proper divisors (13147768).

22154162 is a wasteful number, since it uses less digits than its factorization.

22154162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38365 (or 38348 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 22154162 is about 4706.8207953989. The cubic root of 22154162 is about 280.8569071737.

Adding to 22154162 its product of digits (960), we get a palindrome (22155122).

Adding to 22154162 its reverse (26145122), we get a palindrome (48299284).

The spelling of 22154162 in words is "twenty-two million, one hundred fifty-four thousand, one hundred sixty-two".