531317657 has 8 divisors (see below), whose sum is σ = 584363136. Its totient is φ = 480011472.

The previous prime is 531317651. The next prime is 531317663. The reversal of 531317657 is 756713135.

It is an interprime number because it is at equal distance from previous prime (531317651) and next prime (531317663).

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 531317657 - 2¹⁴ = 531301273 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 531317657.

It is not an unprimeable number, because it can be changed into a prime (531317651) 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 7 ways as a sum of consecutive naturals, for example, 434183 + ... + 435404.

It is an arithmetic number, because the mean of its divisors is an integer number (73045392).

Almost surely, 2^531317657 is an apocalyptic number.

It is an amenable number.

531317657 is a deficient number, since it is larger than the sum of its proper divisors (53045479).

531317657 is a wasteful number, since it uses less digits than its factorization.

531317657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869647.

The product of its digits is 66150, while the sum is 38.

The square root of 531317657 is about 23050.3287829046. The cubic root of 531317657 is about 809.9373304153.

The spelling of 531317657 in words is "five hundred thirty-one million, three hundred seventeen thousand, six hundred fifty-seven".