243140342 has 8 divisors (see below), whose sum is σ = 365089032. Its totient is φ = 121444000.

The previous prime is 243140333. The next prime is 243140363. The reversal of 243140342 is 243041342.

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

It is a congruent number.

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, 60659 + ... + 64542.

It is an arithmetic number, because the mean of its divisors is an integer number (45636129).

Almost surely, 2^243140342 is an apocalyptic number.

243140342 is a deficient number, since it is larger than the sum of its proper divisors (121948690).

243140342 is a wasteful number, since it uses less digits than its factorization.

243140342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126174.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 243140342 is about 15592.9580901123. The cubic root of 243140342 is about 624.1452567686.

Adding to 243140342 its reverse (243041342), we get a palindrome (486181684).

The spelling of 243140342 in words is "two hundred forty-three million, one hundred forty thousand, three hundred forty-two".