243077812 has 12 divisors (see below), whose sum is σ = 426358240. Its totient is φ = 121261176.

The previous prime is 243077767. The next prime is 243077831. The reversal of 243077812 is 218770342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67458 + ... + 70969.

Almost surely, 2^243077812 is an apocalyptic number.

It is an amenable number.

243077812 is a deficient number, since it is larger than the sum of its proper divisors (183280428).

243077812 is a wasteful number, since it uses less digits than its factorization.

243077812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138870 (or 138868 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 243077812 is about 15590.9528894163. The cubic root of 243077812 is about 624.0917470017.

The spelling of 243077812 in words is "two hundred forty-three million, seventy-seven thousand, eight hundred twelve".