531201671 has 48 divisors (see below), whose sum is σ = 739834368. Its totient is φ = 368323200.

The previous prime is 531201599. The next prime is 531201683. The reversal of 531201671 is 176102135.

It is not a de Polignac number, because 531201671 - 2¹⁰ = 531200647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 531201671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531201571) 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 47 ways as a sum of consecutive naturals, for example, 841526 + ... + 842156.

It is an arithmetic number, because the mean of its divisors is an integer number (15413216).

Almost surely, 2^531201671 is an apocalyptic number.

531201671 is a deficient number, since it is larger than the sum of its proper divisors (208632697).

531201671 is a wasteful number, since it uses less digits than its factorization.

531201671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 531201671 is about 23047.8127161776. The cubic root of 531201671 is about 809.8783900140.

It can be divided in two parts, 531 and 201671, that added together give a palindrome (202202).

The spelling of 531201671 in words is "five hundred thirty-one million, two hundred one thousand, six hundred seventy-one".