231783283 has 4 divisors (see below), whose sum is σ = 239775840. Its totient is φ = 223790728.

The previous prime is 231783271. The next prime is 231783353. The reversal of 231783283 is 382387132.

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 231783283 - 2²¹ = 229686131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231783583) 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 3 ways as a sum of consecutive naturals, for example, 3996235 + ... + 3996292.

It is an arithmetic number, because the mean of its divisors is an integer number (59943960).

Almost surely, 2^231783283 is an apocalyptic number.

231783283 is a deficient number, since it is larger than the sum of its proper divisors (7992557).

231783283 is an equidigital number, since it uses as much as digits as its factorization.

231783283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7992556.

The product of its digits is 48384, while the sum is 37.

The square root of 231783283 is about 15224.4304655379. The cubic root of 231783283 is about 614.2719770010.

The spelling of 231783283 in words is "two hundred thirty-one million, seven hundred eighty-three thousand, two hundred eighty-three".