22545641 has 2 divisors, whose sum is σ = 22545642. Its totient is φ = 22545640.

The previous prime is 22545629. The next prime is 22545709. The reversal of 22545641 is 14654522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19669225 + 2876416 = 4435^2 + 1696^2 .

It is a cyclic number.

It is not a de Polignac number, because 22545641 - 2⁶ = 22545577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22545241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11272820 + 11272821.

It is an arithmetic number, because the mean of its divisors is an integer number (11272821).

Almost surely, 2^22545641 is an apocalyptic number.

It is an amenable number.

22545641 is a deficient number, since it is larger than the sum of its proper divisors (1).

22545641 is an equidigital number, since it uses as much as digits as its factorization.

22545641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9600, while the sum is 29.

The square root of 22545641 is about 4748.2250367901. The cubic root of 22545641 is about 282.5015678510.

The spelling of 22545641 in words is "twenty-two million, five hundred forty-five thousand, six hundred forty-one".