431143 has 4 divisors (see below), whose sum is σ = 446040. Its totient is φ = 416248.

The previous prime is 431141. The next prime is 431147. The reversal of 431143 is 341134.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 431143 - 2¹ = 431141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7405 + ... + 7462.

It is an arithmetic number, because the mean of its divisors is an integer number (111510).

2⁴³¹¹⁴³ is an apocalyptic number.

431143 is a deficient number, since it is larger than the sum of its proper divisors (14897).

431143 is a wasteful number, since it uses less digits than its factorization.

431143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14896.

The product of its digits is 144, while the sum is 16.

The square root of 431143 is about 656.6148033665. The cubic root of 431143 is about 75.5452413673.

Adding to 431143 its reverse (341134), we get a palindrome (772277).

Subtracting from 431143 its reverse (341134), we obtain a palindrome (90009).

The spelling of 431143 in words is "four hundred thirty-one thousand, one hundred forty-three".