531151 has 4 divisors (see below), whose sum is σ = 538704. Its totient is φ = 523600.

The previous prime is 531143. The next prime is 531163. The reversal of 531151 is 151135.

531151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 531151 - 2³ = 531143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3670 + ... + 3811.

It is an arithmetic number, because the mean of its divisors is an integer number (134676).

2⁵³¹¹⁵¹ is an apocalyptic number.

531151 is a deficient number, since it is larger than the sum of its proper divisors (7553).

531151 is an equidigital number, since it uses as much as digits as its factorization.

531151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7552.

The product of its digits is 75, while the sum is 16.

The square root of 531151 is about 728.8010702517. The cubic root of 531151 is about 80.9852637928.

Subtracting from 531151 its sum of digits (16), we obtain a palindrome (531135).

Adding to 531151 its reverse (151135), we get a palindrome (682286).

The spelling of 531151 in words is "five hundred thirty-one thousand, one hundred fifty-one".