231071707 has 4 divisors (see below), whose sum is σ = 231181776. Its totient is φ = 230961640.

The previous prime is 231071689. The next prime is 231071713. The reversal of 231071707 is 707170132.

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 231071707 - 2²⁷ = 96853979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231071717) 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, 51823 + ... + 56104.

It is an arithmetic number, because the mean of its divisors is an integer number (57795444).

Almost surely, 2^231071707 is an apocalyptic number.

231071707 is a deficient number, since it is larger than the sum of its proper divisors (110069).

231071707 is a wasteful number, since it uses less digits than its factorization.

231071707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110068.

The product of its (nonzero) digits is 2058, while the sum is 28.

The square root of 231071707 is about 15201.0429576395. The cubic root of 231071707 is about 613.6427264698.

The spelling of 231071707 in words is "two hundred thirty-one million, seventy-one thousand, seven hundred seven".