234445231 has 4 divisors (see below), whose sum is σ = 235064200. Its totient is φ = 233826264.

The previous prime is 234445163. The next prime is 234445241. The reversal of 234445231 is 132544432.

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 234445231 - 2¹⁹ = 233920943 is a prime.

It is a super-2 number, since 2×234445231² = 109929132677286722, 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 234445231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234445241) 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, 308916 + ... + 309673.

It is an arithmetic number, because the mean of its divisors is an integer number (58766050).

Almost surely, 2^234445231 is an apocalyptic number.

234445231 is a deficient number, since it is larger than the sum of its proper divisors (618969).

234445231 is an equidigital number, since it uses as much as digits as its factorization.

234445231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618968.

The product of its digits is 11520, while the sum is 28.

The square root of 234445231 is about 15311.6044554449. The cubic root of 234445231 is about 616.6145962689.

Adding to 234445231 its reverse (132544432), we get a palindrome (366989663).

The spelling of 234445231 in words is "two hundred thirty-four million, four hundred forty-five thousand, two hundred thirty-one".