243132441 has 4 divisors (see below), whose sum is σ = 324176592. Its totient is φ = 162088292.

The previous prime is 243132437. The next prime is 243132467. The reversal of 243132441 is 144231342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243132441 - 2² = 243132437 is a prime.

It is a super-2 number, since 2×243132441² = 118226767733236962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243132401) 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, 40522071 + ... + 40522076.

It is an arithmetic number, because the mean of its divisors is an integer number (81044148).

Almost surely, 2^243132441 is an apocalyptic number.

It is an amenable number.

243132441 is a deficient number, since it is larger than the sum of its proper divisors (81044151).

243132441 is an equidigital number, since it uses as much as digits as its factorization.

243132441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81044150.

The product of its digits is 2304, while the sum is 24.

The square root of 243132441 is about 15592.7047365106. The cubic root of 243132441 is about 624.1384960297.

Adding to 243132441 its reverse (144231342), we get a palindrome (387363783).

The spelling of 243132441 in words is "two hundred forty-three million, one hundred thirty-two thousand, four hundred forty-one".