158995872 has 288 divisors, whose sum is σ = 563576832. Its totient is φ = 43110144.

The previous prime is 158995867. The next prime is 158995873. The reversal of 158995872 is 278599851.

158995872 is a `hidden beast` number, since 1 + 58 + 9 + 9 + 587 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (1814400) is a multiple of the sum of its prime divisors (162).

It is not an unprimeable number, because it can be changed into a prime (158995873) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1251873 + ... + 1251999.

It is an arithmetic number, because the mean of its divisors is an integer number (1956864).

Almost surely, 2^158995872 is an apocalyptic number.

158995872 is a gapful number since it is divisible by the number (12) 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 158995872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281788416).

158995872 is an abundant number, since it is smaller than the sum of its proper divisors (404580960).

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

158995872 is a wasteful number, since it uses less digits than its factorization.

158995872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 162 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 54.

The square root of 158995872 is about 12609.3565260088. The cubic root of 158995872 is about 541.7454631036.

It can be divided in two parts, 1589 and 95872, that added together give a triangular number (97461 = T₄₄₁).

The spelling of 158995872 in words is "one hundred fifty-eight million, nine hundred ninety-five thousand, eight hundred seventy-two".