105231 has 8 divisors (see below), whose sum is σ = 160384. Its totient is φ = 60120.

The previous prime is 105229. The next prime is 105239. The reversal of 105231 is 132501.

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

It is not a de Polignac number, because 105231 - 2¹ = 105229 is a prime.

It is a super-2 number, since 2×105231² = 22147126722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2485 + ... + 2526.

It is an arithmetic number, because the mean of its divisors is an integer number (20048).

2¹⁰⁵²³¹ is an apocalyptic number.

105231 is a deficient number, since it is larger than the sum of its proper divisors (55153).

105231 is an equidigital number, since it uses as much as digits as its factorization.

105231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5021.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 105231 is about 324.3932798317. The cubic root of 105231 is about 47.2115108859.

Adding to 105231 its reverse (132501), we get a palindrome (237732).

The spelling of 105231 in words is "one hundred five thousand, two hundred thirty-one".