143135423 has 2 divisors, whose sum is σ = 143135424. Its totient is φ = 143135422.

The previous prime is 143135413. The next prime is 143135471. The reversal of 143135423 is 324531341.

It is a weak prime.

It is an emirp because it is prime and its reverse (324531341) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143135423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143135392 and 143135401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143135413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71567711 + 71567712.

It is an arithmetic number, because the mean of its divisors is an integer number (71567712).

Almost surely, 2^143135423 is an apocalyptic number.

143135423 is a deficient number, since it is larger than the sum of its proper divisors (1).

143135423 is an equidigital number, since it uses as much as digits as its factorization.

143135423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 26.

The square root of 143135423 is about 11963.9217232478. The cubic root of 143135423 is about 523.0971757812.

Adding to 143135423 its reverse (324531341), we get a palindrome (467666764).

The spelling of 143135423 in words is "one hundred forty-three million, one hundred thirty-five thousand, four hundred twenty-three".