109231 has 4 divisors (see below), whose sum is σ = 115000. Its totient is φ = 103464.

The previous prime is 109229. The next prime is 109253. The reversal of 109231 is 132901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132901 = 347 ⋅383.

It is a cyclic number.

It is not a de Polignac number, because 109231 - 2¹ = 109229 is a prime.

It is a super-2 number, since 2×109231² = 23862822722, which contains 22 as substring.

It is the 331-st Hogben number.

It is a Duffinian number.

It is a plaindrome in base 4 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109201) by changing a digit.

It is a nontrivial repunit in base 330.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2856 + ... + 2893.

It is an arithmetic number, because the mean of its divisors is an integer number (28750).

2¹⁰⁹²³¹ is an apocalyptic number.

109231 is a deficient number, since it is larger than the sum of its proper divisors (5769).

109231 is an equidigital number, since it uses as much as digits as its factorization.

109231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5768.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 109231 is about 330.5011346425. The cubic root of 109231 is about 47.8022827642.

The spelling of 109231 in words is "one hundred nine thousand, two hundred thirty-one".