243050947 has 4 divisors (see below), whose sum is σ = 243292840. Its totient is φ = 242809056.

The previous prime is 243050923. The next prime is 243050953. The reversal of 243050947 is 749050342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243050947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243050347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119433 + ... + 121450.

It is an arithmetic number, because the mean of its divisors is an integer number (60823210).

Almost surely, 2^243050947 is an apocalyptic number.

243050947 is a deficient number, since it is larger than the sum of its proper divisors (241893).

243050947 is a wasteful number, since it uses less digits than its factorization.

243050947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241892.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 243050947 is about 15590.0913082637. The cubic root of 243050947 is about 624.0687545803.

The spelling of 243050947 in words is "two hundred forty-three million, fifty thousand, nine hundred forty-seven".