109713 has 4 divisors (see below), whose sum is σ = 146288. Its totient is φ = 73140.

The previous prime is 109673. The next prime is 109717. The reversal of 109713 is 317901.

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: 317901 = 3 ⋅105967.

It is not a de Polignac number, because 109713 - 2⁹ = 109201 is a prime.

It is a D-number.

It is a Duffinian number.

109713 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 109713.

It is not an unprimeable number, because it can be changed into a prime (109717) 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, 18283 + ... + 18288.

It is an arithmetic number, because the mean of its divisors is an integer number (36572).

2¹⁰⁹⁷¹³ is an apocalyptic number.

It is an amenable number.

109713 is a deficient number, since it is larger than the sum of its proper divisors (36575).

109713 is an equidigital number, since it uses as much as digits as its factorization.

109713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36574.

The product of its (nonzero) digits is 189, while the sum is 21.

The square root of 109713 is about 331.2295276693. The cubic root of 109713 is about 47.8724914437.

The spelling of 109713 in words is "one hundred nine thousand, seven hundred thirteen".