243235005 has 64 divisors (see below), whose sum is σ = 441165312. Its totient is φ = 113541120.

The previous prime is 243234907. The next prime is 243235009. The reversal of 243235005 is 500532342.

It is not a de Polignac number, because 243235005 - 2⁹ = 243234493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243235009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 865465 + ... + 865745.

It is an arithmetic number, because the mean of its divisors is an integer number (6893208).

Almost surely, 2^243235005 is an apocalyptic number.

It is an amenable number.

243235005 is a deficient number, since it is larger than the sum of its proper divisors (197930307).

243235005 is a wasteful number, since it uses less digits than its factorization.

243235005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 243235005 is about 15595.9932354435. The cubic root of 243235005 is about 624.2262467514.

Adding to 243235005 its reverse (500532342), we get a palindrome (743767347).

The spelling of 243235005 in words is "two hundred forty-three million, two hundred thirty-five thousand, five".