15715 has 8 divisors (see below), whose sum is σ = 21600. Its totient is φ = 10752.

The previous prime is 15683. The next prime is 15727. The reversal of 15715 is 51751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15715 - 2⁵ = 15683 is a prime.

It is a super-2 number, since 2×15715² = 493922450, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 15692 and 15701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190 + ... + 259.

It is an arithmetic number, because the mean of its divisors is an integer number (2700).

2¹⁵⁷¹⁵ is an apocalyptic number.

15715 is a deficient number, since it is larger than the sum of its proper divisors (5885).

15715 is an equidigital number, since it uses as much as digits as its factorization.

15715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461.

The product of its digits is 175, while the sum is 19.

The square root of 15715 is about 125.3594830876. The cubic root of 15715 is about 25.0479081338.

The spelling of 15715 in words is "fifteen thousand, seven hundred fifteen".