22349231 has 2 divisors, whose sum is σ = 22349232. Its totient is φ = 22349230.

The previous prime is 22349213. The next prime is 22349269. The reversal of 22349231 is 13294322.

Together with previous prime (22349213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22349231 is a prime.

It is a super-2 number, since 2×22349231² = 998976252582722, which contains 22 as substring.

It is a Chen prime.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 22349231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22349281) 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, 11174615 + 11174616.

It is an arithmetic number, because the mean of its divisors is an integer number (11174616).

Almost surely, 2^22349231 is an apocalyptic number.

22349231 is a deficient number, since it is larger than the sum of its proper divisors (1).

22349231 is an equidigital number, since it uses as much as digits as its factorization.

22349231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 26.

The square root of 22349231 is about 4727.4973294546. The cubic root of 22349231 is about 281.6788213344.

The spelling of 22349231 in words is "twenty-two million, three hundred forty-nine thousand, two hundred thirty-one".