243113087 has 12 divisors (see below), whose sum is σ = 279822960. Its totient is φ = 206908416.

The previous prime is 243113077. The next prime is 243113153. The reversal of 243113087 is 780311342.

It is not a de Polignac number, because 243113087 - 2⁴ = 243113071 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 (243113077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171839 + ... + 173247.

It is an arithmetic number, because the mean of its divisors is an integer number (23318580).

Almost surely, 2^243113087 is an apocalyptic number.

243113087 is a deficient number, since it is larger than the sum of its proper divisors (36709873).

243113087 is an equidigital number, since it uses as much as digits as its factorization.

243113087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730 (or 1573 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 243113087 is about 15592.0841134211. The cubic root of 243113087 is about 624.1219345527.

The spelling of 243113087 in words is "two hundred forty-three million, one hundred thirteen thousand, eighty-seven".