22250154 has 16 divisors (see below), whose sum is σ = 46435392. Its totient is φ = 7094208.

The previous prime is 22250153. The next prime is 22250203. The reversal of 22250154 is 45105222.

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 22250154.

It is not an unprimeable number, because it can be changed into a prime (22250153) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 80479 + ... + 80754.

It is an arithmetic number, because the mean of its divisors is an integer number (2902212).

Almost surely, 2^22250154 is an apocalyptic number.

22250154 is an abundant number, since it is smaller than the sum of its proper divisors (24185238).

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

22250154 is a wasteful number, since it uses less digits than its factorization.

22250154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161261.

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

The square root of 22250154 is about 4717.0068899674. The cubic root of 22250154 is about 281.2619653181.

Adding to 22250154 its reverse (45105222), we get a palindrome (67355376).

The spelling of 22250154 in words is "twenty-two million, two hundred fifty thousand, one hundred fifty-four".