143231434 has 8 divisors (see below), whose sum is σ = 214964100. Its totient is φ = 71576736.

The previous prime is 143231401. The next prime is 143231447. The reversal of 143231434 is 434132341.

It can be written as a sum of positive squares in 2 ways, for example, as 141681409 + 1550025 = 11903^2 + 1245^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 143231399 and 143231408.

It is an unprimeable number.

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, 14659 + ... + 22390.

Almost surely, 2^143231434 is an apocalyptic number.

143231434 is a deficient number, since it is larger than the sum of its proper divisors (71732666).

143231434 is a wasteful number, since it uses less digits than its factorization.

143231434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38984.

The product of its digits is 3456, while the sum is 25.

The square root of 143231434 is about 11967.9335726766. The cubic root of 143231434 is about 523.2141090013.

Adding to 143231434 its reverse (434132341), we get a palindrome (577363775).

The spelling of 143231434 in words is "one hundred forty-three million, two hundred thirty-one thousand, four hundred thirty-four".