22263131 has 4 divisors (see below), whose sum is σ = 24287064. Its totient is φ = 20239200.

The previous prime is 22263113. The next prime is 22263179. The reversal of 22263131 is 13136222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22263131 - 2⁶ = 22263067 is a prime.

It is a super-2 number, since 2×22263131² = 991294003846322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22263191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1011950 + ... + 1011971.

It is an arithmetic number, because the mean of its divisors is an integer number (6071766).

Almost surely, 2^22263131 is an apocalyptic number.

22263131 is a deficient number, since it is larger than the sum of its proper divisors (2023933).

22263131 is a wasteful number, since it uses less digits than its factorization.

22263131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023932.

The product of its digits is 432, while the sum is 20.

The square root of 22263131 is about 4718.3822439476. The cubic root of 22263131 is about 281.3166350096.

Adding to 22263131 its reverse (13136222), we get a palindrome (35399353).

The spelling of 22263131 in words is "twenty-two million, two hundred sixty-three thousand, one hundred thirty-one".