158137144 has 96 divisors (see below), whose sum is σ = 350380800. Its totient is φ = 66306240.

The previous prime is 158137117. The next prime is 158137163. The reversal of 158137144 is 441731851.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2001697 + ... + 2001775.

It is an arithmetic number, because the mean of its divisors is an integer number (3649800).

Almost surely, 2^158137144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158137144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175190400).

158137144 is an abundant number, since it is smaller than the sum of its proper divisors (192243656).

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

158137144 is a wasteful number, since it uses less digits than its factorization.

158137144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 158 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 158137144 is about 12575.2592021000. The cubic root of 158137144 is about 540.7683894172.

Adding to 158137144 its reverse (441731851), we get a palindrome (599868995).

The spelling of 158137144 in words is "one hundred fifty-eight million, one hundred thirty-seven thousand, one hundred forty-four".