531168461 has 8 divisors (see below), whose sum is σ = 536033400. Its totient is φ = 526321152.

The previous prime is 531168457. The next prime is 531168467. The reversal of 531168461 is 164861135.

It can be written as a sum of positive squares in 4 ways, for example, as 23522500 + 507645961 = 4850^2 + 22531^2 .

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 531168461 - 2² = 531168457 is a prime.

It is a super-2 number, since 2×531168461² = 564279867922217042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531168467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60401 + ... + 68633.

It is an arithmetic number, because the mean of its divisors is an integer number (67004175).

Almost surely, 2^531168461 is an apocalyptic number.

It is an amenable number.

531168461 is a deficient number, since it is larger than the sum of its proper divisors (4864939).

531168461 is a wasteful number, since it uses less digits than its factorization.

531168461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8815.

The product of its digits is 17280, while the sum is 35.

The square root of 531168461 is about 23047.0922460947. The cubic root of 531168461 is about 809.8615121668.

The spelling of 531168461 in words is "five hundred thirty-one million, one hundred sixty-eight thousand, four hundred sixty-one".