22631243 has 2 divisors, whose sum is σ = 22631244. Its totient is φ = 22631242.

The previous prime is 22631207. The next prime is 22631251. The reversal of 22631243 is 34213622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22631243 - 2¹⁴ = 22614859 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (22631143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11315621 + 11315622.

It is an arithmetic number, because the mean of its divisors is an integer number (11315622).

Almost surely, 2^22631243 is an apocalyptic number.

22631243 is a deficient number, since it is larger than the sum of its proper divisors (1).

22631243 is an equidigital number, since it uses as much as digits as its factorization.

22631243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 23.

The square root of 22631243 is about 4757.2306019364. The cubic root of 22631243 is about 282.8586532513.

Adding to 22631243 its reverse (34213622), we get a palindrome (56844865).

The spelling of 22631243 in words is "twenty-two million, six hundred thirty-one thousand, two hundred forty-three".