531433 has 12 divisors (see below), whose sum is σ = 635520. Its totient is φ = 435240.

The previous prime is 531383. The next prime is 531457. The reversal of 531433 is 334135.

531433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-531433 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 531433.

It is not an unprimeable number, because it can be changed into a prime (531133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6688 + ... + 6766.

It is an arithmetic number, because the mean of its divisors is an integer number (52960).

531433 is a Friedman number, since it can be written as ((3*1)^3)^4-5-3, using all its digits and the basic arithmetic operations.

2⁵³¹⁴³³ is an apocalyptic number.

It is an amenable number.

531433 is a deficient number, since it is larger than the sum of its proper divisors (104087).

531433 is an equidigital number, since it uses as much as digits as its factorization.

531433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 117 counting only the distinct ones).

The product of its digits is 540, while the sum is 19.

The square root of 531433 is about 728.9945130109. The cubic root of 531433 is about 80.9995935559. Note that the first 3 decimals are identical.

Adding to 531433 its reverse (334135), we get a palindrome (865568).

The spelling of 531433 in words is "five hundred thirty-one thousand, four hundred thirty-three".