22899109 has 2 divisors, whose sum is σ = 22899110. Its totient is φ = 22899108.

The previous prime is 22899101. The next prime is 22899131. The reversal of 22899109 is 90199822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11710084 + 11189025 = 3422^2 + 3345^2 .

It is a cyclic number.

It is not a de Polignac number, because 22899109 - 2³ = 22899101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22899101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11449554 + 11449555.

It is an arithmetic number, because the mean of its divisors is an integer number (11449555).

Almost surely, 2^22899109 is an apocalyptic number.

It is an amenable number.

22899109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22899109 is an equidigital number, since it uses as much as digits as its factorization.

22899109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 22899109 is about 4785.3013489226. The cubic root of 22899109 is about 283.9702615492.

The spelling of 22899109 in words is "twenty-two million, eight hundred ninety-nine thousand, one hundred nine".