243734745 has 8 divisors (see below), whose sum is σ = 389975616. Its totient is φ = 129991856.

The previous prime is 243734731. The next prime is 243734759. The reversal of 243734745 is 547437342.

It is a happy number.

243734745 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 (243734731) and next prime (243734759).

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 243734745 - 2⁶ = 243734681 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8124477 + ... + 8124506.

It is an arithmetic number, because the mean of its divisors is an integer number (48746952).

Almost surely, 2^243734745 is an apocalyptic number.

It is an amenable number.

243734745 is a deficient number, since it is larger than the sum of its proper divisors (146240871).

243734745 is a wasteful number, since it uses less digits than its factorization.

243734745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16248991.

The product of its digits is 282240, while the sum is 39.

The square root of 243734745 is about 15612.0064373546. The cubic root of 243734745 is about 624.6534569548.

The spelling of 243734745 in words is "two hundred forty-three million, seven hundred thirty-four thousand, seven hundred forty-five".