143131042 has 4 divisors (see below), whose sum is σ = 214696566. Its totient is φ = 71565520.

The previous prime is 143131019. The next prime is 143131057. The reversal of 143131042 is 240131341.

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

It can be written as a sum of positive squares in only one way, i.e., 127441521 + 15689521 = 11289^2 + 3961^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35782759 + ... + 35782762.

Almost surely, 2^143131042 is an apocalyptic number.

143131042 is a deficient number, since it is larger than the sum of its proper divisors (71565524).

143131042 is an equidigital number, since it uses as much as digits as its factorization.

143131042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71565523.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 143131042 is about 11963.7386297094. The cubic root of 143131042 is about 523.0918388491.

Adding to 143131042 its reverse (240131341), we get a palindrome (383262383).

The spelling of 143131042 in words is "one hundred forty-three million, one hundred thirty-one thousand, forty-two".