158191488 has 256 divisors, whose sum is σ = 575769600. Its totient is φ = 41637888.

The previous prime is 158191463. The next prime is 158191499. The reversal of 158191488 is 884191851.

158191488 is a `hidden beast` number, since 1 + 5 + 81 + 91 + 488 = 666.

158191488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314245 + ... + 314747.

It is an arithmetic number, because the mean of its divisors is an integer number (2249100).

Almost surely, 2^158191488 is an apocalyptic number.

158191488 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 158191488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287884800).

158191488 is an abundant number, since it is smaller than the sum of its proper divisors (417578112).

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

158191488 is a wasteful number, since it uses less digits than its factorization.

158191488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 528 counting only the distinct ones).

The product of its digits is 92160, while the sum is 45.

The square root of 158191488 is about 12577.4197671860. The cubic root of 158191488 is about 540.8303275361.

The spelling of 158191488 in words is "one hundred fifty-eight million, one hundred ninety-one thousand, four hundred eighty-eight".