231063558 has 64 divisors (see below), whose sum is σ = 539343360. Its totient is φ = 65216000.

The previous prime is 231063551. The next prime is 231063571. The reversal of 231063558 is 855360132.

231063558 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231063551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112303 + ... + 114341.

It is an arithmetic number, because the mean of its divisors is an integer number (8427240).

Almost surely, 2^231063558 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231063558, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269671680).

231063558 is an abundant number, since it is smaller than the sum of its proper divisors (308279802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231063558 is a wasteful number, since it uses less digits than its factorization.

231063558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 231063558 is about 15200.7749144575. The cubic root of 231063558 is about 613.6355127879.

The spelling of 231063558 in words is "two hundred thirty-one million, sixty-three thousand, five hundred fifty-eight".