158951 has 4 divisors (see below), whose sum is σ = 171192. Its totient is φ = 146712.

The previous prime is 158941. The next prime is 158959. The reversal of 158951 is 159851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 159851 = 17 ⋅9403.

It is a cyclic number.

It is not a de Polignac number, because 158951 - 2¹⁴ = 142567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 158951.

It is not an unprimeable number, because it can be changed into a prime (158959) 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 in 3 ways as a sum of consecutive naturals, for example, 6101 + ... + 6126.

It is an arithmetic number, because the mean of its divisors is an integer number (42798).

2¹⁵⁸⁹⁵¹ is an apocalyptic number.

158951 is a deficient number, since it is larger than the sum of its proper divisors (12241).

158951 is a wasteful number, since it uses less digits than its factorization.

158951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12240.

The product of its digits is 1800, while the sum is 29.

The square root of 158951 is about 398.6865937049. The cubic root of 158951 is about 54.1694494297.

Subtracting 158951 from its reverse (159851), we obtain a square (900 = 30²).

The spelling of 158951 in words is "one hundred fifty-eight thousand, nine hundred fifty-one".