109715 has 4 divisors (see below), whose sum is σ = 131664. Its totient is φ = 87768.

The previous prime is 109673. The next prime is 109717. The reversal of 109715 is 517901.

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

It is a cyclic number.

It is not a de Polignac number, because 109715 - 2¹² = 105619 is a prime.

It is a Duffinian number.

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, 10967 + ... + 10976.

It is an arithmetic number, because the mean of its divisors is an integer number (32916).

2¹⁰⁹⁷¹⁵ is an apocalyptic number.

109715 is a deficient number, since it is larger than the sum of its proper divisors (21949).

109715 is an equidigital number, since it uses as much as digits as its factorization.

109715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21948.

The product of its (nonzero) digits is 315, while the sum is 23.

The square root of 109715 is about 331.2325467100. The cubic root of 109715 is about 47.8727823372.

The spelling of 109715 in words is "one hundred nine thousand, seven hundred fifteen".