158989760 has 56 divisors (see below), whose sum is σ = 380207520. Its totient is φ = 63325184.

The previous prime is 158989751. The next prime is 158989781. The reversal of 158989760 is 67989851.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85157 + ... + 87003.

It is an arithmetic number, because the mean of its divisors is an integer number (6789420).

Almost surely, 2^158989760 is an apocalyptic number.

158989760 is a gapful number since it is divisible by the number (10) 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 158989760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190103760).

158989760 is an abundant number, since it is smaller than the sum of its proper divisors (221217760).

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

158989760 is a wasteful number, since it uses less digits than its factorization.

158989760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133 (or 2123 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 158989760 is about 12609.1141639689. The cubic root of 158989760 is about 541.7385212238.

Subtracting from 158989760 its reverse (67989851), we obtain a palindrome (90999909).

The spelling of 158989760 in words is "one hundred fifty-eight million, nine hundred eighty-nine thousand, seven hundred sixty".