22451154 has 16 divisors (see below), whose sum is σ = 48984480. Its totient is φ = 6803360.

The previous prime is 22451147. The next prime is 22451167. The reversal of 22451154 is 45115422.

It is a Curzon number.

It is an unprimeable number.

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, 170019 + ... + 170150.

It is an arithmetic number, because the mean of its divisors is an integer number (3061530).

Almost surely, 2^22451154 is an apocalyptic number.

22451154 is an abundant number, since it is smaller than the sum of its proper divisors (26533326).

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

22451154 is a wasteful number, since it uses less digits than its factorization.

22451154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340185.

The product of its digits is 1600, while the sum is 24.

The square root of 22451154 is about 4738.2648722924. The cubic root of 22451154 is about 282.1063680022.

Adding to 22451154 its reverse (45115422), we get a palindrome (67566576).

The spelling of 22451154 in words is "twenty-two million, four hundred fifty-one thousand, one hundred fifty-four".