143305242 has 16 divisors (see below), whose sum is σ = 288269280. Its totient is φ = 47491952.

The previous prime is 143305241. The next prime is 143305259. The reversal of 143305242 is 242503341.

It is not an unprimeable number, because it can be changed into a prime (143305241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67992 + ... + 70067.

It is an arithmetic number, because the mean of its divisors is an integer number (18016830).

Almost surely, 2^143305242 is an apocalyptic number.

143305242 is an abundant number, since it is smaller than the sum of its proper divisors (144964038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143305242 is a wasteful number, since it uses less digits than its factorization.

143305242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138237.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 143305242 is about 11971.0167487979. The cubic root of 143305242 is about 523.3039653373.

Adding to 143305242 its reverse (242503341), we get a palindrome (385808583).

The spelling of 143305242 in words is "one hundred forty-three million, three hundred five thousand, two hundred forty-two".