103981093 has 4 divisors (see below), whose sum is σ = 104021440. Its totient is φ = 103940748.

The previous prime is 103981081. The next prime is 103981117. The reversal of 103981093 is 390189301.

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, and also an emirpimes, since its reverse is a distinct semiprime: 390189301 = 19 ⋅20536279.

It is a cyclic number.

It is not a de Polignac number, because 103981093 - 2⁹ = 103980581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103981193) 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, 16023 + ... + 21556.

It is an arithmetic number, because the mean of its divisors is an integer number (26005360).

Almost surely, 2^103981093 is an apocalyptic number.

It is an amenable number.

103981093 is a deficient number, since it is larger than the sum of its proper divisors (40347).

103981093 is an equidigital number, since it uses as much as digits as its factorization.

103981093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40346.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 103981093 is about 10197.1119931086. Note that the first 3 decimals coincide. The cubic root of 103981093 is about 470.2384379421.

The spelling of 103981093 in words is "one hundred three million, nine hundred eighty-one thousand, ninety-three".