243058231 has 16 divisors (see below), whose sum is σ = 283608864. Its totient is φ = 206244864.

The previous prime is 243058219. The next prime is 243058243. The reversal of 243058231 is 132850342.

It is an interprime number because it is at equal distance from previous prime (243058219) and next prime (243058243).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243058231 is a prime.

It is a super-2 number, since 2×243058231² = 118154607313698722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243058231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243058201) 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, 3286 + ... + 22291.

It is an arithmetic number, because the mean of its divisors is an integer number (17725554).

Almost surely, 2^243058231 is an apocalyptic number.

243058231 is a deficient number, since it is larger than the sum of its proper divisors (40550633).

243058231 is a wasteful number, since it uses less digits than its factorization.

243058231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25650.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 243058231 is about 15590.3249164346. The cubic root of 243058231 is about 624.0749887621.

The spelling of 243058231 in words is "two hundred forty-three million, fifty-eight thousand, two hundred thirty-one".