230405231 has 4 divisors (see below), whose sum is σ = 263320272. Its totient is φ = 197490192.

The previous prime is 230405209. The next prime is 230405293. The reversal of 230405231 is 132504032.

It is a happy number.

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 230405231 - 2²² = 226210927 is a prime.

It is a super-2 number, since 2×230405231² = 106173140944326722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230405731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16457510 + ... + 16457523.

It is an arithmetic number, because the mean of its divisors is an integer number (65830068).

Almost surely, 2^230405231 is an apocalyptic number.

230405231 is a deficient number, since it is larger than the sum of its proper divisors (32915041).

230405231 is an equidigital number, since it uses as much as digits as its factorization.

230405231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32915040.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 230405231 is about 15179.1050790223. The cubic root of 230405231 is about 613.0521854221.

Adding to 230405231 its reverse (132504032), we get a palindrome (362909263).

The spelling of 230405231 in words is "two hundred thirty million, four hundred five thousand, two hundred thirty-one".