531365117 has 4 divisors (see below), whose sum is σ = 533096256. Its totient is φ = 529633980.

The previous prime is 531365111. The next prime is 531365119. The reversal of 531365117 is 711563135.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 531365117 - 2⁴ = 531365101 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 (531365111) by changing a digit.

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, 865109 + ... + 865722.

It is an arithmetic number, because the mean of its divisors is an integer number (133274064).

Almost surely, 2^531365117 is an apocalyptic number.

It is an amenable number.

531365117 is a deficient number, since it is larger than the sum of its proper divisors (1731139).

531365117 is a wasteful number, since it uses less digits than its factorization.

531365117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731138.

The product of its digits is 9450, while the sum is 32.

The square root of 531365117 is about 23051.3582463160. The cubic root of 531365117 is about 809.9614456069.

The spelling of 531365117 in words is "five hundred thirty-one million, three hundred sixty-five thousand, one hundred seventeen".