22981141 has 2 divisors, whose sum is σ = 22981142. Its totient is φ = 22981140.

The previous prime is 22981129. The next prime is 22981157. The reversal of 22981141 is 14118922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20566225 + 2414916 = 4535^2 + 1554^2 .

It is a cyclic number.

It is not a de Polignac number, because 22981141 - 2⁵ = 22981109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22981121) 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, 11490570 + 11490571.

It is an arithmetic number, because the mean of its divisors is an integer number (11490571).

Almost surely, 2^22981141 is an apocalyptic number.

It is an amenable number.

22981141 is a deficient number, since it is larger than the sum of its proper divisors (1).

22981141 is an equidigital number, since it uses as much as digits as its factorization.

22981141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 28.

The square root of 22981141 is about 4793.8649334331. The cubic root of 22981141 is about 284.3089484883.

The spelling of 22981141 in words is "twenty-two million, nine hundred eighty-one thousand, one hundred forty-one".