158015140 has 12 divisors (see below), whose sum is σ = 331831836. Its totient is φ = 63206048.

The previous prime is 158015111. The next prime is 158015147. The reversal of 158015140 is 41510851.

It is a happy number.

158015140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 53934336 + 104080804 = 7344^2 + 10202^2 .

It is not an unprimeable number, because it can be changed into a prime (158015147) 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, 3950359 + ... + 3950398.

It is an arithmetic number, because the mean of its divisors is an integer number (27652653).

Almost surely, 2^158015140 is an apocalyptic number.

158015140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158015140 is an abundant number, since it is smaller than the sum of its proper divisors (173816696).

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

158015140 is a wasteful number, since it uses less digits than its factorization.

158015140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7900766 (or 7900764 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 158015140 is about 12570.4073124143. The cubic root of 158015140 is about 540.6292846732.

Adding to 158015140 its reverse (41510851), we get a palindrome (199525991).

The spelling of 158015140 in words is "one hundred fifty-eight million, fifteen thousand, one hundred forty".