109603 has 4 divisors (see below), whose sum is σ = 118048. Its totient is φ = 101160.

The previous prime is 109597. The next prime is 109609. The reversal of 109603 is 306901.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (109597) and next prime (109609).

It is a cyclic number.

It is not a de Polignac number, because 109603 - 2¹³ = 101411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109609) 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, 4203 + ... + 4228.

It is an arithmetic number, because the mean of its divisors is an integer number (29512).

2¹⁰⁹⁶⁰³ is an apocalyptic number.

109603 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

109603 is a deficient number, since it is larger than the sum of its proper divisors (8445).

109603 is an equidigital number, since it uses as much as digits as its factorization.

109603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8444.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 109603 is about 331.0634380296. The cubic root of 109603 is about 47.8564868531.

The spelling of 109603 in words is "one hundred nine thousand, six hundred three".