158987195 has 8 divisors (see below), whose sum is σ = 192637536. Its totient is φ = 125954496.

The previous prime is 158987177. The next prime is 158987203. The reversal of 158987195 is 591789851.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158987195 - 2⁶ = 158987131 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153842 + ... + 154871.

It is an arithmetic number, because the mean of its divisors is an integer number (24079692).

Almost surely, 2^158987195 is an apocalyptic number.

158987195 is a deficient number, since it is larger than the sum of its proper divisors (33650341).

158987195 is a wasteful number, since it uses less digits than its factorization.

158987195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308821.

The product of its digits is 907200, while the sum is 53.

The square root of 158987195 is about 12609.0124514174. The cubic root of 158987195 is about 541.7356078983.

The spelling of 158987195 in words is "one hundred fifty-eight million, nine hundred eighty-seven thousand, one hundred ninety-five".