103081 has 4 divisors (see below), whose sum is σ = 112464. Its totient is φ = 93700.

The previous prime is 103079. The next prime is 103087. The reversal of 103081 is 180301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103081 - 2¹ = 103079 is a prime.

It is a super-2 number, since 2×103081² = 21251385122, which contains 22 as substring.

103081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (103087) 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, 4675 + ... + 4696.

It is an arithmetic number, because the mean of its divisors is an integer number (28116).

2¹⁰³⁰⁸¹ is an apocalyptic number.

103081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

103081 is a deficient number, since it is larger than the sum of its proper divisors (9383).

103081 is an equidigital number, since it uses as much as digits as its factorization.

103081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9382.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 103081 is about 321.0622992505. The cubic root of 103081 is about 46.8877660045.

Adding to 103081 its reverse (180301), we get a palindrome (283382).

It can be divided in two parts, 1030 and 81, that added together give a palindrome (1111).

The spelling of 103081 in words is "one hundred three thousand, eighty-one".