22502154 has 16 divisors (see below), whose sum is σ = 45329760. Its totient is φ = 7446480.

The previous prime is 22502141. The next prime is 22502159. The reversal of 22502154 is 45120522.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22502154.

It is not an unprimeable number, because it can be changed into a prime (22502159) 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 7 ways as a sum of consecutive naturals, for example, 12657 + ... + 14324.

It is an arithmetic number, because the mean of its divisors is an integer number (2833110).

Almost surely, 2^22502154 is an apocalyptic number.

22502154 is an abundant number, since it is smaller than the sum of its proper divisors (22827606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22502154 is a wasteful number, since it uses less digits than its factorization.

22502154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27125.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 22502154 is about 4743.6435363547. The cubic root of 22502154 is about 282.3198172284.

Adding to 22502154 its reverse (45120522), we get a palindrome (67622676).

The spelling of 22502154 in words is "twenty-two million, five hundred two thousand, one hundred fifty-four".