143242242 has 32 divisors (see below), whose sum is σ = 336571200. Its totient is φ = 40067520.

The previous prime is 143242237. The next prime is 143242249. The reversal of 143242242 is 242242341.

143242242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (143242249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82617 + ... + 84332.

It is an arithmetic number, because the mean of its divisors is an integer number (10517850).

Almost surely, 2^143242242 is an apocalyptic number.

143242242 is an abundant number, since it is smaller than the sum of its proper divisors (193328958).

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

143242242 is a wasteful number, since it uses less digits than its factorization.

143242242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166978.

The product of its digits is 3072, while the sum is 24.

The square root of 143242242 is about 11968.3851040982. The cubic root of 143242242 is about 523.2272689521.

Adding to 143242242 its reverse (242242341), we get a palindrome (385484583).

Subtracting 143242242 from its reverse (242242341), we obtain a palindrome (99000099).

The spelling of 143242242 in words is "one hundred forty-three million, two hundred forty-two thousand, two hundred forty-two".