531371343 has 4 divisors (see below), whose sum is σ = 708495128. Its totient is φ = 354247560.

The previous prime is 531371311. The next prime is 531371383. The reversal of 531371343 is 343173135.

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

It is not a de Polignac number, because 531371343 - 2⁵ = 531371311 is a prime.

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 531371343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531371383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88561888 + ... + 88561893.

It is an arithmetic number, because the mean of its divisors is an integer number (177123782).

Almost surely, 2^531371343 is an apocalyptic number.

531371343 is a deficient number, since it is larger than the sum of its proper divisors (177123785).

531371343 is a wasteful number, since it uses less digits than its factorization.

531371343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177123784.

The product of its digits is 11340, while the sum is 30.

The square root of 531371343 is about 23051.4932921926. The cubic root of 531371343 is about 809.9646090314.

The spelling of 531371343 in words is "five hundred thirty-one million, three hundred seventy-one thousand, three hundred forty-three".