158068987 has 4 divisors (see below), whose sum is σ = 158463576. Its totient is φ = 157674400.

The previous prime is 158068979. The next prime is 158068991. The reversal of 158068987 is 789860851.

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 158068987 - 2³ = 158068979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158068927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196693 + ... + 197494.

It is an arithmetic number, because the mean of its divisors is an integer number (39615894).

Almost surely, 2^158068987 is an apocalyptic number.

158068987 is a deficient number, since it is larger than the sum of its proper divisors (394589).

158068987 is an equidigital number, since it uses as much as digits as its factorization.

158068987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394588.

The product of its (nonzero) digits is 967680, while the sum is 52.

The square root of 158068987 is about 12572.5489460173. The cubic root of 158068987 is about 540.6906879855.

The spelling of 158068987 in words is "one hundred fifty-eight million, sixty-eight thousand, nine hundred eighty-seven".