243145342 has 8 divisors (see below), whose sum is σ = 397874232. Its totient is φ = 110520600.

The previous prime is 243145321. The next prime is 243145391. The reversal of 243145342 is 243541342.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 243145342.

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, 5526009 + ... + 5526052.

It is an arithmetic number, because the mean of its divisors is an integer number (49734279).

Almost surely, 2^243145342 is an apocalyptic number.

243145342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243145342 is a deficient number, since it is larger than the sum of its proper divisors (154728890).

243145342 is a wasteful number, since it uses less digits than its factorization.

243145342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11052074.

The product of its digits is 11520, while the sum is 28.

The square root of 243145342 is about 15593.1184180715. The cubic root of 243145342 is about 624.1495351000.

Adding to 243145342 its reverse (243541342), we get a palindrome (486686684).

The spelling of 243145342 in words is "two hundred forty-three million, one hundred forty-five thousand, three hundred forty-two".