243541045 has 16 divisors (see below), whose sum is σ = 319127040. Its totient is φ = 176948800.

The previous prime is 243541021. The next prime is 243541049. The reversal of 243541045 is 540145342.

It is not a de Polignac number, because 243541045 - 2⁵ = 243541013 is a prime.

It is a super-3 number, since 3×243541045³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243541049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92700 + ... + 95290.

It is an arithmetic number, because the mean of its divisors is an integer number (19945440).

Almost surely, 2^243541045 is an apocalyptic number.

It is an amenable number.

243541045 is a deficient number, since it is larger than the sum of its proper divisors (75585995).

243541045 is a wasteful number, since it uses less digits than its factorization.

243541045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4316.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 243541045 is about 15605.8016455420. The cubic root of 243541045 is about 624.4879389842.

Adding to 243541045 its reverse (540145342), we get a palindrome (783686387).

The spelling of 243541045 in words is "two hundred forty-three million, five hundred forty-one thousand, forty-five".