158137488 has 80 divisors (see below), whose sum is σ = 464523840. Its totient is φ = 51480576.

The previous prime is 158137481. The next prime is 158137501. The reversal of 158137488 is 884731851.

It is a happy number.

158137488 is a `hidden beast` number, since 158 + 13 + 7 + 488 = 666.

158137488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×158137488² = 50014930221900288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (158137481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14320 + ... + 22832.

It is an arithmetic number, because the mean of its divisors is an integer number (5806548).

Almost surely, 2^158137488 is an apocalyptic number.

158137488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158137488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232261920).

158137488 is an abundant number, since it is smaller than the sum of its proper divisors (306386352).

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

158137488 is a wasteful number, since it uses less digits than its factorization.

158137488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8573 (or 8561 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 158137488 is about 12575.2728797430. The cubic root of 158137488 is about 540.7687815330.

The spelling of 158137488 in words is "one hundred fifty-eight million, one hundred thirty-seven thousand, four hundred eighty-eight".