531047 has 8 divisors (see below), whose sum is σ = 604800. Its totient is φ = 461560.

The previous prime is 531043. The next prime is 531071. The reversal of 531047 is 740135.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 531047 - 2² = 531043 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531043) 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, 797 + ... + 1302.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2⁵³¹⁰⁴⁷ is an apocalyptic number.

531047 is a deficient number, since it is larger than the sum of its proper divisors (73753).

531047 is a wasteful number, since it uses less digits than its factorization.

531047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 531047 is about 728.7297166989. The cubic root of 531047 is about 80.9799777774.

The spelling of 531047 in words is "five hundred thirty-one thousand, forty-seven".