156158 has 4 divisors (see below), whose sum is σ = 234240. Its totient is φ = 78078.

The previous prime is 156157. The next prime is 156217. The reversal of 156158 is 851651.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 851651 = 229 ⋅3719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156151) 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, 39038 + ... + 39041.

It is an arithmetic number, because the mean of its divisors is an integer number (58560).

2¹⁵⁶¹⁵⁸ is an apocalyptic number.

156158 is a deficient number, since it is larger than the sum of its proper divisors (78082).

156158 is an equidigital number, since it uses as much as digits as its factorization.

156158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78081.

The product of its digits is 1200, while the sum is 26.

The square root of 156158 is about 395.1683185682. The cubic root of 156158 is about 53.8502940825.

The spelling of 156158 in words is "one hundred fifty-six thousand, one hundred fifty-eight".