243430141 has 4 divisors (see below), whose sum is σ = 250009372. Its totient is φ = 236850912.

The previous prime is 243430129. The next prime is 243430151. The reversal of 243430141 is 141034342.

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 133494916 + 109935225 = 11554^2 + 10485^2 .

It is not a de Polignac number, because 243430141 - 2¹⁵ = 243397373 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 (243430151) 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, 3289560 + ... + 3289633.

It is an arithmetic number, because the mean of its divisors is an integer number (62502343).

Almost surely, 2^243430141 is an apocalyptic number.

It is an amenable number.

243430141 is a deficient number, since it is larger than the sum of its proper divisors (6579231).

243430141 is an equidigital number, since it uses as much as digits as its factorization.

243430141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6579230.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 243430141 is about 15602.2479470107. The cubic root of 243430141 is about 624.3931312472.

Adding to 243430141 its reverse (141034342), we get a palindrome (384464483).

It can be divided in two parts, 2434301 and 41, that added together give a palindrome (2434342).

The spelling of 243430141 in words is "two hundred forty-three million, four hundred thirty thousand, one hundred forty-one".