157671 has 6 divisors (see below), whose sum is σ = 227760. Its totient is φ = 105108.

The previous prime is 157669. The next prime is 157679. The reversal of 157671 is 176751.

It is not a de Polignac number, because 157671 - 2¹ = 157669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8751 + ... + 8768.

It is an arithmetic number, because the mean of its divisors is an integer number (37960).

2¹⁵⁷⁶⁷¹ is an apocalyptic number.

157671 is a deficient number, since it is larger than the sum of its proper divisors (70089).

157671 is a wasteful number, since it uses less digits than its factorization.

157671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17525 (or 17522 counting only the distinct ones).

The product of its digits is 1470, while the sum is 27.

The square root of 157671 is about 397.0780779645. The cubic root of 157671 is about 54.0236521902.

It can be divided in two parts, 157 and 671, that added together give a palindrome (828).

The spelling of 157671 in words is "one hundred fifty-seven thousand, six hundred seventy-one".