531133 has 2 divisors, whose sum is σ = 531134. Its totient is φ = 531132.

The previous prime is 531121. The next prime is 531143. The reversal of 531133 is 331135.

531133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 356409 + 174724 = 597^2 + 418^2 .

It is a cyclic number.

It is not a de Polignac number, because 531133 - 2⁵ = 531101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265566 + 265567.

It is an arithmetic number, because the mean of its divisors is an integer number (265567).

2⁵³¹¹³³ is an apocalyptic number.

It is an amenable number.

531133 is a deficient number, since it is larger than the sum of its proper divisors (1).

531133 is an equidigital number, since it uses as much as digits as its factorization.

531133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 135, while the sum is 16.

The square root of 531133 is about 728.7887210982. The cubic root of 531133 is about 80.9843489549.

Adding to 531133 its reverse (331135), we get a palindrome (862268).

The spelling of 531133 in words is "five hundred thirty-one thousand, one hundred thirty-three".