157843 has 4 divisors (see below), whose sum is σ = 180400. Its totient is φ = 135288.

The previous prime is 157841. The next prime is 157867. The reversal of 157843 is 348751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157843 - 2¹ = 157841 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (157841) 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, 11268 + ... + 11281.

It is an arithmetic number, because the mean of its divisors is an integer number (45100).

2¹⁵⁷⁸⁴³ is an apocalyptic number.

157843 is a deficient number, since it is larger than the sum of its proper divisors (22557).

157843 is an equidigital number, since it uses as much as digits as its factorization.

157843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22556.

The product of its digits is 3360, while the sum is 28.

The square root of 157843 is about 397.2946010205. The cubic root of 157843 is about 54.0432894758.

It can be divided in two parts, 157 and 843, that added together give a cube (1000 = 10³).

The spelling of 157843 in words is "one hundred fifty-seven thousand, eight hundred forty-three".