22142245 has 16 divisors (see below), whose sum is σ = 28254528. Its totient is φ = 16600320.

The previous prime is 22142231. The next prime is 22142257. The reversal of 22142245 is 54224122.

It is not a de Polignac number, because 22142245 - 2⁵ = 22142213 is a prime.

It is a Duffinian number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 27742 + ... + 28528.

It is an arithmetic number, because the mean of its divisors is an integer number (1765908).

Almost surely, 2^22142245 is an apocalyptic number.

It is an amenable number.

22142245 is a deficient number, since it is larger than the sum of its proper divisors (6112283).

22142245 is a wasteful number, since it uses less digits than its factorization.

22142245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140.

The product of its digits is 1280, while the sum is 22.

The square root of 22142245 is about 4705.5546963137. The cubic root of 22142245 is about 280.8065393306.

Adding to 22142245 its reverse (54224122), we get a palindrome (76366367).

The spelling of 22142245 in words is "twenty-two million, one hundred forty-two thousand, two hundred forty-five".