243411005 has 4 divisors (see below), whose sum is σ = 292093212. Its totient is φ = 194728800.

The previous prime is 243410989. The next prime is 243411031. The reversal of 243411005 is 500114342.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38663524 + 204747481 = 6218^2 + 14309^2 .

It is not a de Polignac number, because 243411005 - 2⁴ = 243410989 is a prime.

It is a super-2 number, since 2×243411005² = 118497834710220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24341096 + ... + 24341105.

It is an arithmetic number, because the mean of its divisors is an integer number (73023303).

Almost surely, 2^243411005 is an apocalyptic number.

It is an amenable number.

243411005 is a deficient number, since it is larger than the sum of its proper divisors (48682207).

243411005 is an equidigital number, since it uses as much as digits as its factorization.

243411005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48682206.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 243411005 is about 15601.6346899932. The cubic root of 243411005 is about 624.3767696742.

Adding to 243411005 its reverse (500114342), we get a palindrome (743525347).

The spelling of 243411005 in words is "two hundred forty-three million, four hundred eleven thousand, five".