143146242 has 24 divisors (see below), whose sum is σ = 310493820. Its totient is φ = 47662560.

The previous prime is 143146219. The next prime is 143146249. The reversal of 143146242 is 242641341.

It is a happy number.

143146242 is a `hidden beast` number, since 1 + 4 + 31 + 4 + 624 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 142062561 + 1083681 = 11919^2 + 1041^2 .

It is not an unprimeable number, because it can be changed into a prime (143146249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14484 + ... + 22272.

Almost surely, 2^143146242 is an apocalyptic number.

143146242 is an abundant number, since it is smaller than the sum of its proper divisors (167347578).

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

143146242 is a wasteful number, since it uses less digits than its factorization.

143146242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8818 (or 8815 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 143146242 is about 11964.3738657733. The cubic root of 143146242 is about 523.1103550154.

Adding to 143146242 its reverse (242641341), we get a palindrome (385787583).

The spelling of 143146242 in words is "one hundred forty-three million, one hundred forty-six thousand, two hundred forty-two".