531469 has 4 divisors (see below), whose sum is σ = 536544. Its totient is φ = 526396.

The previous prime is 531457. The next prime is 531481. The reversal of 531469 is 964135.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (531457) and next prime (531481).

It is a cyclic number.

It is not a de Polignac number, because 531469 - 2¹¹ = 529421 is a prime.

It is a super-2 number, since 2×531469² = 564918595922, which contains 22 as substring.

It is a Duffinian number.

531469 is a lucky number.

It is a plaindrome in base 11.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531169) 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 3 ways as a sum of consecutive naturals, for example, 2377 + ... + 2590.

It is an arithmetic number, because the mean of its divisors is an integer number (134136).

531469 is a Friedman number, since it can be written as 9^6+4*(5+3-1), using all its digits and the basic arithmetic operations.

2⁵³¹⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

531469 is a deficient number, since it is larger than the sum of its proper divisors (5075).

531469 is a wasteful number, since it uses less digits than its factorization.

531469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5074.

The product of its digits is 3240, while the sum is 28.

The square root of 531469 is about 729.0192041366. The cubic root of 531469 is about 81.0014225224.

Subtracting from 531469 its sum of digits (28), we obtain a 12-th power (531441 = 3¹²).

It can be divided in two parts, 531 and 469, that added together give a cube (1000 = 10³).

The spelling of 531469 in words is "five hundred thirty-one thousand, four hundred sixty-nine".