243245313 has 24 divisors (see below), whose sum is σ = 363557376. Its totient is φ = 156556800.

The previous prime is 243245297. The next prime is 243245329. The reversal of 243245313 is 313542342.

243245313 is a `hidden beast` number, since 24 + 324 + 5 + 313 = 666.

243245313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (243245297) and next prime (243245329).

It is not a de Polignac number, because 243245313 - 2⁴ = 243245297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243245383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160228 + ... + 161738.

It is an arithmetic number, because the mean of its divisors is an integer number (15148224).

Almost surely, 2^243245313 is an apocalyptic number.

It is an amenable number.

243245313 is a deficient number, since it is larger than the sum of its proper divisors (120312063).

243245313 is a wasteful number, since it uses less digits than its factorization.

243245313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125 (or 2122 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 243245313 is about 15596.3237014368. The cubic root of 243245313 is about 624.2350646068.

Adding to 243245313 its reverse (313542342), we get a palindrome (556787655).

The spelling of 243245313 in words is "two hundred forty-three million, two hundred forty-five thousand, three hundred thirteen".