15701 has 4 divisors (see below), whose sum is σ = 17952. Its totient is φ = 13452.

The previous prime is 15683. The next prime is 15727. The reversal of 15701 is 10751.

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: 10751 = 13 ⋅827.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15701 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a nialpdrome in base 4.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15731) 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, 1115 + ... + 1128.

It is an arithmetic number, because the mean of its divisors is an integer number (4488).

2¹⁵⁷⁰¹ is an apocalyptic number.

It is an amenable number.

15701 is a deficient number, since it is larger than the sum of its proper divisors (2251).

15701 is an equidigital number, since it uses as much as digits as its factorization.

15701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250.

The product of its (nonzero) digits is 35, while the sum is 14.

The square root of 15701 is about 125.3036312323. The cubic root of 15701 is about 25.0404677923.

Subtracting from 15701 its reverse (10751), we obtain a triangular number (4950 = T₉₉).

The spelling of 15701 in words is "fifteen thousand, seven hundred one".