22813135 has 4 divisors (see below), whose sum is σ = 27375768. Its totient is φ = 18250504.

The previous prime is 22813121. The next prime is 22813181. The reversal of 22813135 is 53131822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53131822 = 2 ⋅26565911.

It is a cyclic number.

It is not a de Polignac number, because 22813135 - 2²¹ = 20715983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2281309 + ... + 2281318.

It is an arithmetic number, because the mean of its divisors is an integer number (6843942).

Almost surely, 2^22813135 is an apocalyptic number.

22813135 is a deficient number, since it is larger than the sum of its proper divisors (4562633).

22813135 is an equidigital number, since it uses as much as digits as its factorization.

22813135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4562632.

The product of its digits is 1440, while the sum is 25.

The square root of 22813135 is about 4776.3097680113. The cubic root of 22813135 is about 283.6144299882.

Adding to 22813135 its reverse (53131822), we get a palindrome (75944957).

The spelling of 22813135 in words is "twenty-two million, eight hundred thirteen thousand, one hundred thirty-five".