157727 has 4 divisors (see below), whose sum is σ = 161616. Its totient is φ = 153840.

The previous prime is 157721. The next prime is 157733. The reversal of 157727 is 727751.

157727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 727751 = 569 ⋅1279.

It is an interprime number because it is at equal distance from previous prime (157721) and next prime (157733).

It is a cyclic number.

It is not a de Polignac number, because 157727 - 2¹⁰ = 156703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157721) 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, 1883 + ... + 1964.

It is an arithmetic number, because the mean of its divisors is an integer number (40404).

2¹⁵⁷⁷²⁷ is an apocalyptic number.

157727 is a deficient number, since it is larger than the sum of its proper divisors (3889).

157727 is an equidigital number, since it uses as much as digits as its factorization.

157727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3888.

The product of its digits is 3430, while the sum is 29.

The square root of 157727 is about 397.1485868035. The cubic root of 157727 is about 54.0300472923.

The spelling of 157727 in words is "one hundred fifty-seven thousand, seven hundred twenty-seven".