22140265 has 16 divisors (see below), whose sum is σ = 30440448. Its totient is φ = 15143616.

The previous prime is 22140247. The next prime is 22140269. The reversal of 22140265 is 56204122.

It is a cyclic number.

It is not a de Polignac number, because 22140265 - 2⁵ = 22140233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22140269) by changing a digit.

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, 25224 + ... + 26086.

It is an arithmetic number, because the mean of its divisors is an integer number (1902528).

Almost surely, 2^22140265 is an apocalyptic number.

It is an amenable number.

22140265 is a deficient number, since it is larger than the sum of its proper divisors (8300183).

22140265 is an equidigital number, since it uses as much as digits as its factorization.

22140265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 22140265 is about 4705.3443019613. The cubic root of 22140265 is about 280.7981690032.

Adding to 22140265 its reverse (56204122), we get a palindrome (78344387).

The spelling of 22140265 in words is "twenty-two million, one hundred forty thousand, two hundred sixty-five".