243341555 has 8 divisors (see below), whose sum is σ = 292345872. Its totient is φ = 194449248.

The previous prime is 243341543. The next prime is 243341561. The reversal of 243341555 is 555143342.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243341555 - 2⁶ = 243341491 is a prime.

It is a super-2 number, since 2×243341555² = 118430224779636050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23144 + ... + 31973.

It is an arithmetic number, because the mean of its divisors is an integer number (36543234).

Almost surely, 2^243341555 is an apocalyptic number.

243341555 is a deficient number, since it is larger than the sum of its proper divisors (49004317).

243341555 is an equidigital number, since it uses as much as digits as its factorization.

243341555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56005.

The product of its digits is 36000, while the sum is 32.

The square root of 243341555 is about 15599.4088029002. The cubic root of 243341555 is about 624.3173816563.

Adding to 243341555 its reverse (555143342), we get a palindrome (798484897).

The spelling of 243341555 in words is "two hundred forty-three million, three hundred forty-one thousand, five hundred fifty-five".