143424631 has 24 divisors (see below), whose sum is σ = 179818496. Its totient is φ = 111922560.

The previous prime is 143424629. The next prime is 143424637. The reversal of 143424631 is 136424341.

It is not a de Polignac number, because 143424631 - 2¹ = 143424629 is a prime.

It is a super-2 number, since 2×143424631² = 41141249554972322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143424631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143424637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61570 + ... + 63856.

Almost surely, 2^143424631 is an apocalyptic number.

143424631 is a deficient number, since it is larger than the sum of its proper divisors (36393865).

143424631 is a wasteful number, since it uses less digits than its factorization.

143424631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359 (or 2342 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 143424631 is about 11976.0022962590. The cubic root of 143424631 is about 523.4492482181.

Adding to 143424631 its reverse (136424341), we get a palindrome (279848972).

The spelling of 143424631 in words is "one hundred forty-three million, four hundred twenty-four thousand, six hundred thirty-one".