22419109 has 2 divisors, whose sum is σ = 22419110. Its totient is φ = 22419108.

The previous prime is 22419101. The next prime is 22419113. The reversal of 22419109 is 90191422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20160100 + 2259009 = 4490^2 + 1503^2 .

It is a cyclic number.

It is not a de Polignac number, because 22419109 - 2³ = 22419101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22419101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11209554 + 11209555.

It is an arithmetic number, because the mean of its divisors is an integer number (11209555).

Almost surely, 2^22419109 is an apocalyptic number.

It is an amenable number.

22419109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22419109 is an equidigital number, since it uses as much as digits as its factorization.

22419109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 22419109 is about 4734.8821527045. The cubic root of 22419109 is about 281.9720853277.

The spelling of 22419109 in words is "twenty-two million, four hundred nineteen thousand, one hundred nine".