231084971 has 4 divisors (see below), whose sum is σ = 248860752. Its totient is φ = 213309192.

The previous prime is 231084949. The next prime is 231084989. The reversal of 231084971 is 179480132.

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

It is a cyclic number.

It is not a de Polignac number, because 231084971 - 2²⁶ = 163976107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231084901) 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, 8887871 + ... + 8887896.

It is an arithmetic number, because the mean of its divisors is an integer number (62215188).

Almost surely, 2^231084971 is an apocalyptic number.

231084971 is a deficient number, since it is larger than the sum of its proper divisors (17775781).

231084971 is a wasteful number, since it uses less digits than its factorization.

231084971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17775780.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 231084971 is about 15201.4792372321. The cubic root of 231084971 is about 613.6544677045.

The spelling of 231084971 in words is "two hundred thirty-one million, eighty-four thousand, nine hundred seventy-one".