22003109 has 4 divisors (see below), whose sum is σ = 22418316. Its totient is φ = 21587904.

The previous prime is 22003103. The next prime is 22003129. The reversal of 22003109 is 90130022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13300609 + 8702500 = 3647^2 + 2950^2 .

It is a cyclic number.

It is not a de Polignac number, because 22003109 - 2⁸ = 22002853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22003103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207524 + ... + 207629.

It is an arithmetic number, because the mean of its divisors is an integer number (5604579).

Almost surely, 2^22003109 is an apocalyptic number.

It is an amenable number.

22003109 is a deficient number, since it is larger than the sum of its proper divisors (415207).

22003109 is an equidigital number, since it uses as much as digits as its factorization.

22003109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415206.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 22003109 is about 4690.7471686289. The cubic root of 22003109 is about 280.2171317473.

The spelling of 22003109 in words is "twenty-two million, three thousand, one hundred nine".