157849 has 4 divisors (see below), whose sum is σ = 164736. Its totient is φ = 150964.

The previous prime is 157841. The next prime is 157867. The reversal of 157849 is 948751.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 948751 = 157 ⋅6043.

It is a cyclic number.

It is not a de Polignac number, because 157849 - 2³ = 157841 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a nialpdrome in base 12.

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, 3409 + ... + 3454.

It is an arithmetic number, because the mean of its divisors is an integer number (41184).

2¹⁵⁷⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

157849 is a deficient number, since it is larger than the sum of its proper divisors (6887).

157849 is an equidigital number, since it uses as much as digits as its factorization.

157849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6886.

The product of its digits is 10080, while the sum is 34.

The square root of 157849 is about 397.3021520203. The cubic root of 157849 is about 54.0439742398.

The spelling of 157849 in words is "one hundred fifty-seven thousand, eight hundred forty-nine".