22681109 has 4 divisors (see below), whose sum is σ = 24743040. Its totient is φ = 20619180.

The previous prime is 22681097. The next prime is 22681123. The reversal of 22681109 is 90118622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22681109 - 2¹⁶ = 22615573 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 (22681189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030949 + ... + 1030970.

It is an arithmetic number, because the mean of its divisors is an integer number (6185760).

Almost surely, 2^22681109 is an apocalyptic number.

It is an amenable number.

22681109 is a deficient number, since it is larger than the sum of its proper divisors (2061931).

22681109 is a wasteful number, since it uses less digits than its factorization.

22681109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061930.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 22681109 is about 4762.4687925487. The cubic root of 22681109 is about 283.0662524322.

The spelling of 22681109 in words is "twenty-two million, six hundred eighty-one thousand, one hundred nine".