158897 has 4 divisors (see below), whose sum is σ = 167280. Its totient is φ = 150516.

The previous prime is 158881. The next prime is 158909. The reversal of 158897 is 798851.

158897 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 798851 = 673 ⋅1187.

It is a cyclic number.

It is not a de Polignac number, because 158897 - 2⁴ = 158881 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 158897.

It is not an unprimeable number, because it can be changed into a prime (158867) 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, 4163 + ... + 4200.

It is an arithmetic number, because the mean of its divisors is an integer number (41820).

2¹⁵⁸⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

158897 is a deficient number, since it is larger than the sum of its proper divisors (8383).

158897 is an equidigital number, since it uses as much as digits as its factorization.

158897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8382.

The product of its digits is 20160, while the sum is 38.

The square root of 158897 is about 398.6188655847. The cubic root of 158897 is about 54.1633144540.

The spelling of 158897 in words is "one hundred fifty-eight thousand, eight hundred ninety-seven".