243383245 has 12 divisors (see below), whose sum is σ = 339743484. Its totient is φ = 166891200.

The previous prime is 243383219. The next prime is 243383267. The reversal of 243383245 is 542383342.

It can be written as a sum of positive squares in 2 ways, for example, as 28526281 + 214856964 = 5341^2 + 14658^2 .

It is not a de Polignac number, because 243383245 - 2¹⁵ = 243350477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243383245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 496456 + ... + 496945.

It is an arithmetic number, because the mean of its divisors is an integer number (28311957).

Almost surely, 2^243383245 is an apocalyptic number.

It is an amenable number.

243383245 is a deficient number, since it is larger than the sum of its proper divisors (96360239).

243383245 is an equidigital number, since it uses as much as digits as its factorization.

243383245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993420 (or 993413 counting only the distinct ones).

The product of its digits is 69120, while the sum is 34.

The square root of 243383245 is about 15600.7450142613. The cubic root of 243383245 is about 624.3530329248.

The spelling of 243383245 in words is "two hundred forty-three million, three hundred eighty-three thousand, two hundred forty-five".