243240883 has 2 divisors, whose sum is σ = 243240884. Its totient is φ = 243240882.

The previous prime is 243240859. The next prime is 243240901. The reversal of 243240883 is 388042342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243240883 - 2²¹ = 241143731 is a prime.

It is a super-2 number, since 2×243240883² = 118332254325239378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (243241883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121620441 + 121620442.

It is an arithmetic number, because the mean of its divisors is an integer number (121620442).

Almost surely, 2^243240883 is an apocalyptic number.

243240883 is a deficient number, since it is larger than the sum of its proper divisors (1).

243240883 is an equidigital number, since it uses as much as digits as its factorization.

243240883 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 243240883 is about 15596.1816801421. The cubic root of 243240883 is about 624.2312750468.

The spelling of 243240883 in words is "two hundred forty-three million, two hundred forty thousand, eight hundred eighty-three".