22501154 has 16 divisors (see below), whose sum is σ = 36619128. Its totient is φ = 10307712.

The previous prime is 22501151. The next prime is 22501163. The reversal of 22501154 is 45110522.

It can be written as a sum of positive squares in 4 ways, for example, as 16851025 + 5650129 = 4105^2 + 2377^2 .

It is not an unprimeable number, because it can be changed into a prime (22501151) 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, 404 + ... + 6720.

Almost surely, 2^22501154 is an apocalyptic number.

22501154 is a deficient number, since it is larger than the sum of its proper divisors (14117974).

22501154 is a wasteful number, since it uses less digits than its factorization.

22501154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6469.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 22501154 is about 4743.5381309735. The cubic root of 22501154 is about 282.3156350510.

Adding to 22501154 its reverse (45110522), we get a palindrome (67611676).

The spelling of 22501154 in words is "twenty-two million, five hundred one thousand, one hundred fifty-four".