231086189 has 8 divisors (see below), whose sum is σ = 243432000. Its totient is φ = 218758752.

The previous prime is 231086179. The next prime is 231086231. The reversal of 231086189 is 981680132.

231086189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231086189 - 2⁴ = 231086173 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 (231086179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26792 + ... + 34350.

It is an arithmetic number, because the mean of its divisors is an integer number (30429000).

Almost surely, 2^231086189 is an apocalyptic number.

It is an amenable number.

231086189 is a deficient number, since it is larger than the sum of its proper divisors (12345811).

231086189 is a wasteful number, since it uses less digits than its factorization.

231086189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9187.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 231086189 is about 15201.5192990701. The cubic root of 231086189 is about 613.6555458502.

The spelling of 231086189 in words is "two hundred thirty-one million, eighty-six thousand, one hundred eighty-nine".