22631133 has 8 divisors (see below), whose sum is σ = 34485568. Its totient is φ = 12932064.

The previous prime is 22631129. The next prime is 22631137. The reversal of 22631133 is 33113622.

It is an interprime number because it is at equal distance from previous prime (22631129) and next prime (22631137).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22631133 - 2² = 22631129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1077673 = 22631133 / (2 + 2 + 6 + 3 + 1 + 1 + 3 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22631137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538816 + ... + 538857.

It is an arithmetic number, because the mean of its divisors is an integer number (4310696).

Almost surely, 2^22631133 is an apocalyptic number.

It is an amenable number.

22631133 is a deficient number, since it is larger than the sum of its proper divisors (11854435).

22631133 is a wasteful number, since it uses less digits than its factorization.

22631133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077683.

The product of its digits is 648, while the sum is 21.

The square root of 22631133 is about 4757.2190405740. The cubic root of 22631133 is about 282.8581949689.

Adding to 22631133 its reverse (33113622), we get a palindrome (55744755).

The spelling of 22631133 in words is "twenty-two million, six hundred thirty-one thousand, one hundred thirty-three".