22831109 has 20 divisors (see below), whose sum is σ = 27461004. Its totient is φ = 18966528.

The previous prime is 22831099. The next prime is 22831117. The reversal of 22831109 is 90113822.

It can be written as a sum of positive squares in 2 ways, for example, as 21669025 + 1162084 = 4655^2 + 1078^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22831109 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 (22831129) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 88709 + ... + 88965.

Almost surely, 2^22831109 is an apocalyptic number.

It is an amenable number.

22831109 is a deficient number, since it is larger than the sum of its proper divisors (4629895).

22831109 is an frugal number, since it uses more digits than its factorization.

22831109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 22831109 is about 4778.1909756727. The cubic root of 22831109 is about 283.6888950945.

The spelling of 22831109 in words is "twenty-two million, eight hundred thirty-one thousand, one hundred nine".