531475 has 12 divisors (see below), whose sum is σ = 753424. Its totient is φ = 364320.

The previous prime is 531457. The next prime is 531481. The reversal of 531475 is 574135.

It is not a de Polignac number, because 531475 - 2⁷ = 531347 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a d-powerful number, because it can be written as 5 + 3¹² + 4² + 1 + 7 + 5 .

It is a plaindrome in base 11.

It is a nialpdrome in base 14.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1344 + ... + 1693.

2⁵³¹⁴⁷⁵ is an apocalyptic number.

531475 is a deficient number, since it is larger than the sum of its proper divisors (221949).

531475 is a wasteful number, since it uses less digits than its factorization.

531475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054 (or 3049 counting only the distinct ones).

The product of its digits is 2100, while the sum is 25.

The square root of 531475 is about 729.0233192429. The cubic root of 531475 is about 81.0017273421.

The spelling of 531475 in words is "five hundred thirty-one thousand, four hundred seventy-five".