15745 has 8 divisors (see below), whose sum is σ = 19584. Its totient is φ = 12144.

The previous prime is 15739. The next prime is 15749. The reversal of 15745 is 54751.

15745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 15745 - 2³ = 15737 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (15749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202 + ... + 268.

It is an arithmetic number, because the mean of its divisors is an integer number (2448).

It is a Proth number, since it is equal to 123 ⋅ 2⁷ + 1 and 123 < 2⁷.

2¹⁵⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

15745 is a deficient number, since it is larger than the sum of its proper divisors (3839).

15745 is an equidigital number, since it uses as much as digits as its factorization.

15745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119.

The product of its digits is 700, while the sum is 22.

The square root of 15745 is about 125.4790819220. The cubic root of 15745 is about 25.0638368555.

It can be divided in two parts, 157 and 45, that added together give a palindrome (202).

The spelling of 15745 in words is "fifteen thousand, seven hundred forty-five".