243053242 has 4 divisors (see below), whose sum is σ = 364579866. Its totient is φ = 121526620.

The previous prime is 243053231. The next prime is 243053257. The reversal of 243053242 is 242350342.

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

It can be written as a sum of positive squares in only one way, i.e., 168766081 + 74287161 = 12991^2 + 8619^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60763309 + ... + 60763312.

Almost surely, 2^243053242 is an apocalyptic number.

243053242 is a deficient number, since it is larger than the sum of its proper divisors (121526624).

243053242 is a wasteful number, since it uses less digits than its factorization.

243053242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121526623.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 243053242 is about 15590.1649125338. The cubic root of 243053242 is about 624.0707188232.

The spelling of 243053242 in words is "two hundred forty-three million, fifty-three thousand, two hundred forty-two".