22943 has 2 divisors, whose sum is σ = 22944. Its totient is φ = 22942.

The previous prime is 22937. The next prime is 22961. The reversal of 22943 is 34922.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22943 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a plaindrome in base 12 and base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11471 + 11472.

It is an arithmetic number, because the mean of its divisors is an integer number (11472).

2²²⁹⁴³ is an apocalyptic number.

22943 is a deficient number, since it is larger than the sum of its proper divisors (1).

22943 is an equidigital number, since it uses as much as digits as its factorization.

22943 is an evil number, because the sum of its binary digits is even.

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

The square root of 22943 is about 151.4694688708. The cubic root of 22943 is about 28.4151575505.

It can be divided in two parts, 229 and 43, that added together give a palindrome (272).

The spelling of 22943 in words is "twenty-two thousand, nine hundred forty-three".