22452154 has 4 divisors (see below), whose sum is σ = 33678234. Its totient is φ = 11226076.

The previous prime is 22452151. The next prime is 22452173. The reversal of 22452154 is 45125422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15015625 + 7436529 = 3875^2 + 2727^2 .

It is not an unprimeable number, because it can be changed into a prime (22452151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5613037 + ... + 5613040.

Almost surely, 2^22452154 is an apocalyptic number.

22452154 is a deficient number, since it is larger than the sum of its proper divisors (11226080).

22452154 is a wasteful number, since it uses less digits than its factorization.

22452154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11226079.

The product of its digits is 3200, while the sum is 25.

The square root of 22452154 is about 4738.3703949776. The cubic root of 22452154 is about 282.1105563865.

Adding to 22452154 its reverse (45125422), we get a palindrome (67577576).

The spelling of 22452154 in words is "twenty-two million, four hundred fifty-two thousand, one hundred fifty-four".