143130431 has 4 divisors (see below), whose sum is σ = 143440032. Its totient is φ = 142820832.

The previous prime is 143130419. The next prime is 143130437. The reversal of 143130431 is 134031341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134031341 = 631 ⋅212411.

It is a cyclic number.

It is not a de Polignac number, because 143130431 - 2¹⁰ = 143129407 is a prime.

It is a super-2 number, since 2×143130431² = 40972640556491522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143130437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154106 + ... + 155031.

It is an arithmetic number, because the mean of its divisors is an integer number (35860008).

Almost surely, 2^143130431 is an apocalyptic number.

143130431 is a deficient number, since it is larger than the sum of its proper divisors (309601).

143130431 is an equidigital number, since it uses as much as digits as its factorization.

143130431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309600.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 143130431 is about 11963.7130941861. The cubic root of 143130431 is about 523.0910945206.

Adding to 143130431 its reverse (134031341), we get a palindrome (277161772).

The spelling of 143130431 in words is "one hundred forty-three million, one hundred thirty thousand, four hundred thirty-one".