231041566 has 48 divisors (see below), whose sum is σ = 416572416. Its totient is φ = 95773104.

The previous prime is 231041563. The next prime is 231041567. The reversal of 231041566 is 665140132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231041561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 474175 + ... + 474661.

It is an arithmetic number, because the mean of its divisors is an integer number (8678592).

Almost surely, 2^231041566 is an apocalyptic number.

231041566 is a deficient number, since it is larger than the sum of its proper divisors (185530850).

231041566 is a wasteful number, since it uses less digits than its factorization.

231041566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 231041566 is about 15200.0515130706. The cubic root of 231041566 is about 613.6160441181.

Adding to 231041566 its reverse (665140132), we get a palindrome (896181698).

The spelling of 231041566 in words is "two hundred thirty-one million, forty-one thousand, five hundred sixty-six".