531171492 has 48 divisors (see below), whose sum is σ = 1252336512. Its totient is φ = 175219200.

The previous prime is 531171481. The next prime is 531171493. The reversal of 531171492 is 294171135.

It is not an unprimeable number, because it can be changed into a prime (531171493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784258 + ... + 784934.

It is an arithmetic number, because the mean of its divisors is an integer number (26090344).

Almost surely, 2^531171492 is an apocalyptic number.

It is an amenable number.

531171492 is an abundant number, since it is smaller than the sum of its proper divisors (721165020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531171492 is a wasteful number, since it uses less digits than its factorization.

531171492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268 (or 1266 counting only the distinct ones).

The product of its digits is 7560, while the sum is 33.

The square root of 531171492 is about 23047.1580026692. The cubic root of 531171492 is about 809.8630525981.

The spelling of 531171492 in words is "five hundred thirty-one million, one hundred seventy-one thousand, four hundred ninety-two".