109031 has 4 divisors (see below), whose sum is σ = 117432. Its totient is φ = 100632.

The previous prime is 109013. The next prime is 109037. The reversal of 109031 is 130901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130901 = 223 ⋅587.

It is a cyclic number.

It is not a de Polignac number, because 109031 - 2⁶ = 108967 is a prime.

It is a super-2 number, since 2×109031² = 23775517922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 108997 and 109015.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 109031.

It is not an unprimeable number, because it can be changed into a prime (109037) by changing a digit.

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, 4181 + ... + 4206.

It is an arithmetic number, because the mean of its divisors is an integer number (29358).

2¹⁰⁹⁰³¹ is an apocalyptic number.

109031 is a deficient number, since it is larger than the sum of its proper divisors (8401).

109031 is an equidigital number, since it uses as much as digits as its factorization.

109031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8400.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 109031 is about 330.1984251931. The cubic root of 109031 is about 47.7730898992.

Adding to 109031 its reverse (130901), we get a palindrome (239932).

The spelling of 109031 in words is "one hundred nine thousand, thirty-one".