531042 has 16 divisors (see below), whose sum is σ = 1078752. Its totient is φ = 174240.

The previous prime is 531023. The next prime is 531043. The reversal of 531042 is 240135.

It is not an unprimeable number, because it can be changed into a prime (531043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259 + ... + 1062.

It is an arithmetic number, because the mean of its divisors is an integer number (67422).

2⁵³¹⁰⁴² is an apocalyptic number.

531042 is an abundant number, since it is smaller than the sum of its proper divisors (547710).

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

531042 is a wasteful number, since it uses less digits than its factorization.

531042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 531042 is about 728.7262860636. The cubic root of 531042 is about 80.9797236246.

Adding to 531042 its reverse (240135), we get a palindrome (771177).

The spelling of 531042 in words is "five hundred thirty-one thousand, forty-two".