243551342 has 4 divisors (see below), whose sum is σ = 365327016. Its totient is φ = 121775670.

The previous prime is 243551327. The next prime is 243551359. The reversal of 243551342 is 243155342.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60887834 + ... + 60887837.

It is an arithmetic number, because the mean of its divisors is an integer number (91331754).

Almost surely, 2^243551342 is an apocalyptic number.

243551342 is a deficient number, since it is larger than the sum of its proper divisors (121775674).

243551342 is a wasteful number, since it uses less digits than its factorization.

243551342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121775673.

The product of its digits is 14400, while the sum is 29.

The square root of 243551342 is about 15606.1315514127. The cubic root of 243551342 is about 624.4967400492.

The spelling of 243551342 in words is "two hundred forty-three million, five hundred fifty-one thousand, three hundred forty-two".