87158 has 4 divisors (see below), whose sum is σ = 130740. Its totient is φ = 43578.

The previous prime is 87151. The next prime is 87179. The reversal of 87158 is 85178.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85178 = 2 ⋅42589.

It is a self number, because there is not a number n which added to its sum of digits gives 87158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21788 + ... + 21791.

It is an arithmetic number, because the mean of its divisors is an integer number (32685).

2⁸⁷¹⁵⁸ is an apocalyptic number.

87158 is a deficient number, since it is larger than the sum of its proper divisors (43582).

87158 is a wasteful number, since it uses less digits than its factorization.

87158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43581.

The product of its digits is 2240, while the sum is 29.

The square root of 87158 is about 295.2253376660. The cubic root of 87158 is about 44.3372839615.

Adding to 87158 its product of digits (2240), we get a palindrome (89398).

It can be divided in two parts, 871 and 58, that added together give a palindrome (929).

The spelling of 87158 in words is "eighty-seven thousand, one hundred fifty-eight".