158888887 has 4 divisors (see below), whose sum is σ = 167251480. Its totient is φ = 150526296.

The previous prime is 158888879. The next prime is 158888897. The reversal of 158888887 is 788888851.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 158888887 - 2³ = 158888879 is a prime.

It is a super-3 number, since 3×158888887³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158888837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4181268 + ... + 4181305.

It is an arithmetic number, because the mean of its divisors is an integer number (41812870).

Almost surely, 2^158888887 is an apocalyptic number.

158888887 is a deficient number, since it is larger than the sum of its proper divisors (8362593).

158888887 is an equidigital number, since it uses as much as digits as its factorization.

158888887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8362592.

The product of its digits is 9175040, while the sum is 61.

The square root of 158888887 is about 12605.1135258672. The cubic root of 158888887 is about 541.6239261056.

The spelling of 158888887 in words is "one hundred fifty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-seven".