231071706 has 24 divisors (see below), whose sum is σ = 516806784. Its totient is φ = 74539080.

The previous prime is 231071689. The next prime is 231071713. The reversal of 231071706 is 607170132.

231071706 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 231071706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206496 + ... + 207611.

It is an arithmetic number, because the mean of its divisors is an integer number (21533616).

Almost surely, 2^231071706 is an apocalyptic number.

231071706 is an abundant number, since it is smaller than the sum of its proper divisors (285735078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231071706 is a wasteful number, since it uses less digits than its factorization.

231071706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414146 (or 414143 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 231071706 is about 15201.0429247470. The cubic root of 231071706 is about 613.6427255846.

The spelling of 231071706 in words is "two hundred thirty-one million, seventy-one thousand, seven hundred six".