22340543 has 2 divisors, whose sum is σ = 22340544. Its totient is φ = 22340542.

The previous prime is 22340503. The next prime is 22340587. The reversal of 22340543 is 34504322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22340543 - 2¹⁰ = 22339519 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22340503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11170271 + 11170272.

It is an arithmetic number, because the mean of its divisors is an integer number (11170272).

Almost surely, 2^22340543 is an apocalyptic number.

22340543 is a deficient number, since it is larger than the sum of its proper divisors (1).

22340543 is an equidigital number, since it uses as much as digits as its factorization.

22340543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 22340543 is about 4726.5783607172. The cubic root of 22340543 is about 281.6423168303.

Adding to 22340543 its reverse (34504322), we get a palindrome (56844865).

The spelling of 22340543 in words is "twenty-two million, three hundred forty thousand, five hundred forty-three".