158201 has 2 divisors, whose sum is σ = 158202. Its totient is φ = 158200.

The previous prime is 158189. The next prime is 158209. The reversal of 158201 is 102851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90601 + 67600 = 301^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 158201 - 2¹⁰ = 157177 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 158201.

It is not a weakly prime, because it can be changed into another prime (158209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79100 + 79101.

It is an arithmetic number, because the mean of its divisors is an integer number (79101).

2¹⁵⁸²⁰¹ is an apocalyptic number.

It is an amenable number.

158201 is a deficient number, since it is larger than the sum of its proper divisors (1).

158201 is an equidigital number, since it uses as much as digits as its factorization.

158201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 158201 is about 397.7448931162. The cubic root of 158201 is about 54.0841167300.

The spelling of 158201 in words is "one hundred fifty-eight thousand, two hundred one".