22232313 has 14 divisors (see below), whose sum is σ = 33334314. Its totient is φ = 14821056.

The previous prime is 22232279. The next prime is 22232317. The reversal of 22232313 is 31323222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20820969 + 1411344 = 4563^2 + 1188^2 .

It is not a de Polignac number, because 22232313 - 2²⁰ = 21183737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22232317) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 14520 + ... + 15977.

Almost surely, 2^22232313 is an apocalyptic number.

It is an amenable number.

22232313 is a deficient number, since it is larger than the sum of its proper divisors (11102001).

22232313 is an frugal number, since it uses more digits than its factorization.

22232313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30515 (or 30500 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 22232313 is about 4715.1153750465. The cubic root of 22232313 is about 281.1867697857.

Adding to 22232313 its reverse (31323222), we get a palindrome (53555535).

Subtracting 22232313 from its reverse (31323222), we obtain a palindrome (9090909).

The spelling of 22232313 in words is "twenty-two million, two hundred thirty-two thousand, three hundred thirteen".