231647234 has 32 divisors (see below), whose sum is σ = 428736000. Its totient is φ = 91409472.

The previous prime is 231647233. The next prime is 231647249. The reversal of 231647234 is 432746132.

It is a self number, because there is not a number n which added to its sum of digits gives 231647234.

It is not an unprimeable number, because it can be changed into a prime (231647233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82892 + ... + 85640.

It is an arithmetic number, because the mean of its divisors is an integer number (13398000).

Almost surely, 2^231647234 is an apocalyptic number.

231647234 is a deficient number, since it is larger than the sum of its proper divisors (197088766).

231647234 is a wasteful number, since it uses less digits than its factorization.

231647234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234.

The product of its digits is 24192, while the sum is 32.

The square root of 231647234 is about 15219.9616950898. The cubic root of 231647234 is about 614.1517678073.

The spelling of 231647234 in words is "two hundred thirty-one million, six hundred forty-seven thousand, two hundred thirty-four".