243274613 has 8 divisors (see below), whose sum is σ = 259686720. Its totient is φ = 227223360.

The previous prime is 243274597. The next prime is 243274621. The reversal of 243274613 is 316472342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243274613 - 2⁴ = 243274597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 243274613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243274643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88820 + ... + 91517.

It is an arithmetic number, because the mean of its divisors is an integer number (32460840).

Almost surely, 2^243274613 is an apocalyptic number.

It is an amenable number.

243274613 is a deficient number, since it is larger than the sum of its proper divisors (16412107).

243274613 is a wasteful number, since it uses less digits than its factorization.

243274613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180427.

The product of its digits is 24192, while the sum is 32.

The square root of 243274613 is about 15597.2629970774. The cubic root of 243274613 is about 624.2601275810.

The spelling of 243274613 in words is "two hundred forty-three million, two hundred seventy-four thousand, six hundred thirteen".