22543141 has 2 divisors, whose sum is σ = 22543142. Its totient is φ = 22543140.

The previous prime is 22543109. The next prime is 22543181. The reversal of 22543141 is 14134522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16638241 + 5904900 = 4079^2 + 2430^2 .

It is a cyclic number.

It is not a de Polignac number, because 22543141 - 2⁵ = 22543109 is a prime.

It is a super-2 number, since 2×22543141² = 1016386412291762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22543181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11271570 + 11271571.

It is an arithmetic number, because the mean of its divisors is an integer number (11271571).

Almost surely, 2^22543141 is an apocalyptic number.

It is an amenable number.

22543141 is a deficient number, since it is larger than the sum of its proper divisors (1).

22543141 is an equidigital number, since it uses as much as digits as its factorization.

22543141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 22.

The square root of 22543141 is about 4747.9617732244. The cubic root of 22543141 is about 282.4911256251.

Adding to 22543141 its reverse (14134522), we get a palindrome (36677663).

The spelling of 22543141 in words is "twenty-two million, five hundred forty-three thousand, one hundred forty-one".