231655983 has 8 divisors (see below), whose sum is σ = 332634288. Its totient is φ = 142557504.

The previous prime is 231655981. The next prime is 231655993. The reversal of 231655983 is 389556132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231655983 - 2¹ = 231655981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231655981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2969910 + ... + 2969987.

It is an arithmetic number, because the mean of its divisors is an integer number (41579286).

Almost surely, 2^231655983 is an apocalyptic number.

231655983 is a deficient number, since it is larger than the sum of its proper divisors (100978305).

231655983 is a wasteful number, since it uses less digits than its factorization.

231655983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5939913.

The product of its digits is 194400, while the sum is 42.

The square root of 231655983 is about 15220.2491109706. The cubic root of 231655983 is about 614.1594996014.

The spelling of 231655983 in words is "two hundred thirty-one million, six hundred fifty-five thousand, nine hundred eighty-three".