143442142 has 4 divisors (see below), whose sum is σ = 215163216. Its totient is φ = 71721070.

The previous prime is 143442137. The next prime is 143442161. The reversal of 143442142 is 241244341.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35860534 + ... + 35860537.

It is an arithmetic number, because the mean of its divisors is an integer number (53790804).

Almost surely, 2^143442142 is an apocalyptic number.

143442142 is a deficient number, since it is larger than the sum of its proper divisors (71721074).

143442142 is an equidigital number, since it uses as much as digits as its factorization.

143442142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71721073.

The product of its digits is 3072, while the sum is 25.

The square root of 143442142 is about 11976.7333609795. The cubic root of 143442142 is about 523.4705503397.

Adding to 143442142 its reverse (241244341), we get a palindrome (384686483).

The spelling of 143442142 in words is "one hundred forty-three million, four hundred forty-two thousand, one hundred forty-two".