143213442 has 8 divisors (see below), whose sum is σ = 286426896. Its totient is φ = 47737812.

The previous prime is 143213437. The next prime is 143213449. The reversal of 143213442 is 244312341.

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

143213442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (143213449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11934448 + ... + 11934459.

It is an arithmetic number, because the mean of its divisors is an integer number (35803362).

Almost surely, 2^143213442 is an apocalyptic number.

143213442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

143213442 is a wasteful number, since it uses less digits than its factorization.

143213442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23868912.

The product of its digits is 2304, while the sum is 24.

The square root of 143213442 is about 11967.1818737746. The cubic root of 143213442 is about 523.1922002573.

Adding to 143213442 its reverse (244312341), we get a palindrome (387525783).

The spelling of 143213442 in words is "one hundred forty-three million, two hundred thirteen thousand, four hundred forty-two".