143423012 has 12 divisors (see below), whose sum is σ = 251132700. Its totient is φ = 71670816.

The previous prime is 143423011. The next prime is 143423029. The reversal of 143423012 is 210324341.

It can be written as a sum of positive squares in 2 ways, for example, as 123298816 + 20124196 = 11104^2 + 4486^2 .

It is not an unprimeable number, because it can be changed into a prime (143423011) by changing a digit.

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, 1403 + ... + 16994.

It is an arithmetic number, because the mean of its divisors is an integer number (20927725).

Almost surely, 2^143423012 is an apocalyptic number.

It is an amenable number.

143423012 is a deficient number, since it is larger than the sum of its proper divisors (107709688).

143423012 is a wasteful number, since it uses less digits than its factorization.

143423012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20350 (or 20348 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 143423012 is about 11975.9347025608. The cubic root of 143423012 is about 523.4472786179.

Adding to 143423012 its reverse (210324341), we get a palindrome (353747353).

The spelling of 143423012 in words is "one hundred forty-three million, four hundred twenty-three thousand, twelve".