243300801 has 4 divisors (see below), whose sum is σ = 324401072. Its totient is φ = 162200532.

The previous prime is 243300791. The next prime is 243300829. The reversal of 243300801 is 108003342.

It is a happy number.

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 not a de Polignac number, because 243300801 - 2⁶ = 243300737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243300851) 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, 40550131 + ... + 40550136.

It is an arithmetic number, because the mean of its divisors is an integer number (81100268).

Almost surely, 2^243300801 is an apocalyptic number.

It is an amenable number.

243300801 is a deficient number, since it is larger than the sum of its proper divisors (81100271).

243300801 is an equidigital number, since it uses as much as digits as its factorization.

243300801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81100270.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 243300801 is about 15598.1024807507. The cubic root of 243300801 is about 624.2825268735.

The spelling of 243300801 in words is "two hundred forty-three million, three hundred thousand, eight hundred one".