243245355 has 48 divisors (see below), whose sum is σ = 415570176. Its totient is φ = 121264000.

The previous prime is 243245339. The next prime is 243245371. The reversal of 243245355 is 553542342.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (243245339) and next prime (243245371).

It is not a de Polignac number, because 243245355 - 2⁴ = 243245339 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 968980 + ... + 969230.

It is an arithmetic number, because the mean of its divisors is an integer number (8657712).

Almost surely, 2^243245355 is an apocalyptic number.

243245355 is a deficient number, since it is larger than the sum of its proper divisors (172324821).

243245355 is a wasteful number, since it uses less digits than its factorization.

243245355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 335 counting only the distinct ones).

The product of its digits is 72000, while the sum is 33.

The square root of 243245355 is about 15596.3250479079. The cubic root of 243245355 is about 624.2351005346.

Adding to 243245355 its reverse (553542342), we get a palindrome (796787697).

The spelling of 243245355 in words is "two hundred forty-three million, two hundred forty-five thousand, three hundred fifty-five".