243124042 has 8 divisors (see below), whose sum is σ = 416784096. Its totient is φ = 104196012.

The previous prime is 243123989. The next prime is 243124061. The reversal of 243124042 is 240421342.

It is a happy number.

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

It is a super-3 number, since 3×243124042³ (a number of 26 digits) contains 333 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 8682988 + ... + 8683015.

It is an arithmetic number, because the mean of its divisors is an integer number (52098012).

Almost surely, 2^243124042 is an apocalyptic number.

243124042 is a deficient number, since it is larger than the sum of its proper divisors (173660054).

243124042 is a wasteful number, since it uses less digits than its factorization.

243124042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17366012.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 243124042 is about 15592.4354095183. The cubic root of 243124042 is about 624.1313090009.

Adding to 243124042 its reverse (240421342), we get a palindrome (483545384).

The spelling of 243124042 in words is "two hundred forty-three million, one hundred twenty-four thousand, forty-two".