143040431 has 8 divisors (see below), whose sum is σ = 155149344. Its totient is φ = 131342080.

The previous prime is 143040421. The next prime is 143040433. The reversal of 143040431 is 134040341.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 143040431 - 2¹⁸ = 142778287 is a prime.

It is a super-2 number, since 2×143040431² = 40921129801331522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143040433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101915 + ... + 103308.

It is an arithmetic number, because the mean of its divisors is an integer number (19393668).

Almost surely, 2^143040431 is an apocalyptic number.

143040431 is a deficient number, since it is larger than the sum of its proper divisors (12108913).

143040431 is a wasteful number, since it uses less digits than its factorization.

143040431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205281.

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

The square root of 143040431 is about 11959.9511286627. The cubic root of 143040431 is about 522.9814321444.

Adding to 143040431 its reverse (134040341), we get a palindrome (277080772).

The spelling of 143040431 in words is "one hundred forty-three million, forty thousand, four hundred thirty-one".