531403134205 has 4 divisors (see below), whose sum is σ = 637683761052. Its totient is φ = 425122507360.

The previous prime is 531403134191. The next prime is 531403134233. The reversal of 531403134205 is 502431304135.

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

It can be written as a sum of positive squares in 2 ways, for example, as 419486791684 + 111916342521 = 647678^2 + 334539^2 .

It is not a de Polignac number, because 531403134205 - 2¹⁹ = 531402609917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53140313416 + ... + 53140313425.

It is an arithmetic number, because the mean of its divisors is an integer number (159420940263).

Almost surely, 2^531403134205 is an apocalyptic number.

It is an amenable number.

531403134205 is a deficient number, since it is larger than the sum of its proper divisors (106280626847).

531403134205 is a wasteful number, since it uses less digits than its factorization.

531403134205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106280626846.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 531403134205 in words is "five hundred thirty-one billion, four hundred three million, one hundred thirty-four thousand, two hundred five".