22791135 has 32 divisors (see below), whose sum is σ = 38949120. Its totient is φ = 11340288.

The previous prime is 22791133. The next prime is 22791151. The reversal of 22791135 is 53119722.

22791135 = 2133² + 2134² + ... + 2137².

It is not a de Polignac number, because 22791135 - 2¹ = 22791133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22791133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35124 + ... + 35766.

It is an arithmetic number, because the mean of its divisors is an integer number (1217160).

Almost surely, 2^22791135 is an apocalyptic number.

22791135 is a deficient number, since it is larger than the sum of its proper divisors (16157985).

22791135 is a wasteful number, since it uses less digits than its factorization.

22791135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807.

The product of its digits is 3780, while the sum is 30.

The square root of 22791135 is about 4774.0061793006. The cubic root of 22791135 is about 283.5232321726.

The spelling of 22791135 in words is "twenty-two million, seven hundred ninety-one thousand, one hundred thirty-five".