231450983 has 16 divisors (see below), whose sum is σ = 245431296. Its totient is φ = 218006880.

The previous prime is 231450977. The next prime is 231451013. The reversal of 231450983 is 389054132.

It is a cyclic number.

It is not a de Polignac number, because 231450983 - 2¹⁶ = 231385447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231450083) 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 15 ways as a sum of consecutive naturals, for example, 142685 + ... + 144297.

It is an arithmetic number, because the mean of its divisors is an integer number (15339456).

Almost surely, 2^231450983 is an apocalyptic number.

231450983 is a deficient number, since it is larger than the sum of its proper divisors (13980313).

231450983 is a wasteful number, since it uses less digits than its factorization.

231450983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 231450983 is about 15213.5131708623. The cubic root of 231450983 is about 613.9782828211.

The spelling of 231450983 in words is "two hundred thirty-one million, four hundred fifty thousand, nine hundred eighty-three".