22541789 has 2 divisors, whose sum is σ = 22541790. Its totient is φ = 22541788.

The previous prime is 22541777. The next prime is 22541791. The reversal of 22541789 is 98714522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22486564 + 55225 = 4742^2 + 235^2 .

It is a cyclic number.

It is not a de Polignac number, because 22541789 - 2⁴ = 22541773 is a prime.

Together with 22541791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22541689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11270894 + 11270895.

It is an arithmetic number, because the mean of its divisors is an integer number (11270895).

Almost surely, 2^22541789 is an apocalyptic number.

It is an amenable number.

22541789 is a deficient number, since it is larger than the sum of its proper divisors (1).

22541789 is an equidigital number, since it uses as much as digits as its factorization.

22541789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 38.

The square root of 22541789 is about 4747.8193942061. The cubic root of 22541789 is about 282.4854781477.

The spelling of 22541789 in words is "twenty-two million, five hundred forty-one thousand, seven hundred eighty-nine".