531166 has 8 divisors (see below), whose sum is σ = 811944. Its totient is φ = 260520.

The previous prime is 531163. The next prime is 531169. The reversal of 531166 is 661135.

531166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (531163) and next prime (531169).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 13.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531163) 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, 2400 + ... + 2611.

It is an arithmetic number, because the mean of its divisors is an integer number (101493).

2⁵³¹¹⁶⁶ is an apocalyptic number.

531166 is a deficient number, since it is larger than the sum of its proper divisors (280778).

531166 is a wasteful number, since it uses less digits than its factorization.

531166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5066.

The product of its digits is 540, while the sum is 22.

The square root of 531166 is about 728.8113610531. The cubic root of 531166 is about 80.9860261420.

The spelling of 531166 in words is "five hundred thirty-one thousand, one hundred sixty-six".