243004141 has 4 divisors (see below), whose sum is σ = 243692892. Its totient is φ = 242315392.

The previous prime is 243004093. The next prime is 243004159. The reversal of 243004141 is 141400342.

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 191020041 + 51984100 = 13821^2 + 7210^2 .

It is a cyclic number.

It is not a de Polignac number, because 243004141 - 2²¹ = 240906989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243004441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343846 + ... + 344551.

It is an arithmetic number, because the mean of its divisors is an integer number (60923223).

Almost surely, 2^243004141 is an apocalyptic number.

It is an amenable number.

243004141 is a deficient number, since it is larger than the sum of its proper divisors (688751).

243004141 is an equidigital number, since it uses as much as digits as its factorization.

243004141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688750.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 243004141 is about 15588.5900901910. The cubic root of 243004141 is about 624.0286915980.

Adding to 243004141 its reverse (141400342), we get a palindrome (384404483).

It can be divided in two parts, 24300 and 4141, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 243004141 in words is "two hundred forty-three million, four thousand, one hundred forty-one".