143312642 has 24 divisors (see below), whose sum is σ = 238199808. Its totient is φ = 64615320.

The previous prime is 143312641. The next prime is 143312683. The reversal of 143312642 is 246213341.

It is not an unprimeable number, because it can be changed into a prime (143312641) 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, 28403 + ... + 33065.

It is an arithmetic number, because the mean of its divisors is an integer number (9924992).

Almost surely, 2^143312642 is an apocalyptic number.

143312642 is a deficient number, since it is larger than the sum of its proper divisors (94887166).

143312642 is a wasteful number, since it uses less digits than its factorization.

143312642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4814 (or 4803 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 143312642 is about 11971.3258246528. The cubic root of 143312642 is about 523.3129726438.

Adding to 143312642 its reverse (246213341), we get a palindrome (389525983).

The spelling of 143312642 in words is "one hundred forty-three million, three hundred twelve thousand, six hundred forty-two".