243052805 has 8 divisors (see below), whose sum is σ = 291766272. Its totient is φ = 194373648.

The previous prime is 243052783. The next prime is 243052837. The reversal of 243052805 is 508250342.

243052805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243052805 - 2¹² = 243048709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11132 + ... + 24698.

It is an arithmetic number, because the mean of its divisors is an integer number (36470784).

Almost surely, 2^243052805 is an apocalyptic number.

It is an amenable number.

243052805 is a deficient number, since it is larger than the sum of its proper divisors (48713467).

243052805 is a wasteful number, since it uses less digits than its factorization.

243052805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17155.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 243052805 is about 15590.1508972813. The cubic root of 243052805 is about 624.0703448049.

The spelling of 243052805 in words is "two hundred forty-three million, fifty-two thousand, eight hundred five".