158311 has 8 divisors (see below), whose sum is σ = 168480. Its totient is φ = 148512.

The previous prime is 158303. The next prime is 158329. The reversal of 158311 is 113851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158311 - 2³ = 158303 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 (158341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1486 + ... + 1588.

It is an arithmetic number, because the mean of its divisors is an integer number (21060).

2¹⁵⁸³¹¹ is an apocalyptic number.

158311 is a deficient number, since it is larger than the sum of its proper divisors (10169).

158311 is a wasteful number, since it uses less digits than its factorization.

158311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185.

The product of its digits is 120, while the sum is 19.

The square root of 158311 is about 397.8831486756. The cubic root of 158311 is about 54.0966490454.

The spelling of 158311 in words is "one hundred fifty-eight thousand, three hundred eleven".