243303141 has 16 divisors (see below), whose sum is σ = 326874240. Its totient is φ = 160972800.

The previous prime is 243303139. The next prime is 243303149. The reversal of 243303141 is 141303342.

It is not a de Polignac number, because 243303141 - 2¹ = 243303139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243303149) 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, 316005 + ... + 316773.

It is an arithmetic number, because the mean of its divisors is an integer number (20429640).

Almost surely, 2^243303141 is an apocalyptic number.

It is an amenable number.

243303141 is a deficient number, since it is larger than the sum of its proper divisors (83571099).

243303141 is a wasteful number, since it uses less digits than its factorization.

243303141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 243303141 is about 15598.1774896941. The cubic root of 243303141 is about 624.2845282595.

Adding to 243303141 its reverse (141303342), we get a palindrome (384606483).

The spelling of 243303141 in words is "two hundred forty-three million, three hundred three thousand, one hundred forty-one".