158140 has 12 divisors (see below), whose sum is σ = 332136. Its totient is φ = 63248.

The previous prime is 158129. The next prime is 158141. The reversal of 158140 is 41851.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158141) 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, 3934 + ... + 3973.

It is an arithmetic number, because the mean of its divisors is an integer number (27678).

2¹⁵⁸¹⁴⁰ is an apocalyptic number.

158140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158140 is an abundant number, since it is smaller than the sum of its proper divisors (173996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158140 is a wasteful number, since it uses less digits than its factorization.

158140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7916 (or 7914 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 158140 is about 397.6682034058. The cubic root of 158140 is about 54.0771644873.

Adding to 158140 its reverse (41851), we get a palindrome (199991).

The spelling of 158140 in words is "one hundred fifty-eight thousand, one hundred forty".