234505 has 4 divisors (see below), whose sum is σ = 281412. Its totient is φ = 187600.

The previous prime is 234499. The next prime is 234511. The reversal of 234505 is 505432.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (234499) and next prime (234511).

It can be written as a sum of positive squares in 2 ways, for example, as 163216 + 71289 = 404^2 + 267^2 .

It is not a de Polignac number, because 234505 - 2⁵ = 234473 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23446 + ... + 23455.

It is an arithmetic number, because the mean of its divisors is an integer number (70353).

2²³⁴⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

234505 is a deficient number, since it is larger than the sum of its proper divisors (46907).

234505 is an equidigital number, since it uses as much as digits as its factorization.

234505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46906.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 234505 is about 484.2571630859. The cubic root of 234505 is about 61.6666991315. Note that the first 4 decimals are identical.

Adding to 234505 its reverse (505432), we get a palindrome (739937).

The spelling of 234505 in words is "two hundred thirty-four thousand, five hundred five".