531163841 has 8 divisors (see below), whose sum is σ = 579859560. Its totient is φ = 483587712.

The previous prime is 531163807. The next prime is 531163879. The reversal of 531163841 is 148361135.

It can be written as a sum of positive squares in 4 ways, for example, as 2163841 + 529000000 = 1471^2 + 23000^2 .

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 531163841 - 2¹⁸ = 530901697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531163798 and 531163807.

It is not an unprimeable number, because it can be changed into a prime (531163741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278906 + ... + 280803.

It is an arithmetic number, because the mean of its divisors is an integer number (72482445).

Almost surely, 2^531163841 is an apocalyptic number.

It is an amenable number.

531163841 is a deficient number, since it is larger than the sum of its proper divisors (48695719).

531163841 is a wasteful number, since it uses less digits than its factorization.

531163841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559795.

The product of its digits is 8640, while the sum is 32.

The square root of 531163841 is about 23046.9920163131. The cubic root of 531163841 is about 809.8591641540.

The spelling of 531163841 in words is "five hundred thirty-one million, one hundred sixty-three thousand, eight hundred forty-one".