22153543 has 2 divisors, whose sum is σ = 22153544. Its totient is φ = 22153542.

The previous prime is 22153519. The next prime is 22153597. The reversal of 22153543 is 34535122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22153543 - 2¹⁷ = 22022471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22150543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11076771 + 11076772.

It is an arithmetic number, because the mean of its divisors is an integer number (11076772).

Almost surely, 2^22153543 is an apocalyptic number.

22153543 is a deficient number, since it is larger than the sum of its proper divisors (1).

22153543 is an equidigital number, since it uses as much as digits as its factorization.

22153543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 25.

The square root of 22153543 is about 4706.7550393026. The cubic root of 22153543 is about 280.8542913816.

Adding to 22153543 its reverse (34535122), we get a palindrome (56688665).

The spelling of 22153543 in words is "twenty-two million, one hundred fifty-three thousand, five hundred forty-three".