22689131 has 4 divisors (see below), whose sum is σ = 22740792. Its totient is φ = 22637472.

The previous prime is 22689119. The next prime is 22689167. The reversal of 22689131 is 13198622.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22689131 is a prime.

It is a super-2 number, since 2×22689131² = 1029593331070322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22689631) 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, 25166 + ... + 26051.

It is an arithmetic number, because the mean of its divisors is an integer number (5685198).

Almost surely, 2^22689131 is an apocalyptic number.

22689131 is a deficient number, since it is larger than the sum of its proper divisors (51661).

22689131 is an equidigital number, since it uses as much as digits as its factorization.

22689131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51660.

The product of its digits is 5184, while the sum is 32.

The square root of 22689131 is about 4763.3109283355. The cubic root of 22689131 is about 283.0996207273.

The spelling of 22689131 in words is "twenty-two million, six hundred eighty-nine thousand, one hundred thirty-one".