22254109 has 2 divisors, whose sum is σ = 22254110. Its totient is φ = 22254108.

The previous prime is 22254097. The next prime is 22254119. The reversal of 22254109 is 90145222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21483225 + 770884 = 4635^2 + 878^2 .

It is a cyclic number.

It is not a de Polignac number, because 22254109 - 2¹⁹ = 21729821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22254119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11127054 + 11127055.

It is an arithmetic number, because the mean of its divisors is an integer number (11127055).

Almost surely, 2^22254109 is an apocalyptic number.

It is an amenable number.

22254109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22254109 is an equidigital number, since it uses as much as digits as its factorization.

22254109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 22254109 is about 4717.4260990502. The cubic root of 22254109 is about 281.2786292503.

The spelling of 22254109 in words is "twenty-two million, two hundred fifty-four thousand, one hundred nine".