157847 has 4 divisors (see below), whose sum is σ = 163320. Its totient is φ = 152376.

The previous prime is 157841. The next prime is 157867. The reversal of 157847 is 748751.

157847 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: 748751 = 29 ⋅25819.

It is a cyclic number.

It is not a de Polignac number, because 157847 - 2⁴ = 157831 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 2693 + ... + 2750.

It is an arithmetic number, because the mean of its divisors is an integer number (40830).

2¹⁵⁷⁸⁴⁷ is an apocalyptic number.

157847 is a deficient number, since it is larger than the sum of its proper divisors (5473).

157847 is an equidigital number, since it uses as much as digits as its factorization.

157847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5472.

The product of its digits is 7840, while the sum is 32.

The square root of 157847 is about 397.2996350363. The cubic root of 157847 is about 54.0437459871.

The spelling of 157847 in words is "one hundred fifty-seven thousand, eight hundred forty-seven".