22140255 has 16 divisors (see below), whose sum is σ = 36006624. Its totient is φ = 11614080.

The previous prime is 22140247. The next prime is 22140269. The reversal of 22140255 is 55204122.

It is a happy number.

It is not a de Polignac number, because 22140255 - 2³ = 22140247 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11184 + ... + 13013.

It is an arithmetic number, because the mean of its divisors is an integer number (2250414).

Almost surely, 2^22140255 is an apocalyptic number.

22140255 is a deficient number, since it is larger than the sum of its proper divisors (13866369).

22140255 is a wasteful number, since it uses less digits than its factorization.

22140255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24266.

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

The square root of 22140255 is about 4705.3432393397. The cubic root of 22140255 is about 280.7981267275.

Adding to 22140255 its reverse (55204122), we get a palindrome (77344377).

The spelling of 22140255 in words is "twenty-two million, one hundred forty thousand, two hundred fifty-five".