158901 has 4 divisors (see below), whose sum is σ = 211872. Its totient is φ = 105932.

The previous prime is 158881. The next prime is 158909. The reversal of 158901 is 109851.

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.

It is a cyclic number.

It is not a de Polignac number, because 158901 - 2¹⁰ = 157877 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158909) 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, 26481 + ... + 26486.

It is an arithmetic number, because the mean of its divisors is an integer number (52968).

2¹⁵⁸⁹⁰¹ is an apocalyptic number.

It is an amenable number.

158901 is a deficient number, since it is larger than the sum of its proper divisors (52971).

158901 is an equidigital number, since it uses as much as digits as its factorization.

158901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52970.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 158901 is about 398.6238828771. The cubic root of 158901 is about 54.1637689443.

The spelling of 158901 in words is "one hundred fifty-eight thousand, nine hundred one".