143345442 has 8 divisors (see below), whose sum is σ = 286690896. Its totient is φ = 47781812.

The previous prime is 143345431. The next prime is 143345459. The reversal of 143345442 is 244543341.

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

143345442 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11945448 + ... + 11945459.

It is an arithmetic number, because the mean of its divisors is an integer number (35836362).

Almost surely, 2^143345442 is an apocalyptic number.

143345442 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.

143345442 is a wasteful number, since it uses less digits than its factorization.

143345442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23890912.

The product of its digits is 23040, while the sum is 30.

The square root of 143345442 is about 11972.6956864359. The cubic root of 143345442 is about 523.3528931885.

Adding to 143345442 its reverse (244543341), we get a palindrome (387888783).

The spelling of 143345442 in words is "one hundred forty-three million, three hundred forty-five thousand, four hundred forty-two".