230158987 has 4 divisors (see below), whose sum is σ = 230202000. Its totient is φ = 230115976.

The previous prime is 230158979. The next prime is 230158991. The reversal of 230158987 is 789851032.

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 230158987 - 2³ = 230158979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230158997) 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, 12112 + ... + 24637.

It is an arithmetic number, because the mean of its divisors is an integer number (57550500).

Almost surely, 2^230158987 is an apocalyptic number.

230158987 is a deficient number, since it is larger than the sum of its proper divisors (43013).

230158987 is an equidigital number, since it uses as much as digits as its factorization.

230158987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43012.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 230158987 is about 15170.9916287631. The cubic root of 230158987 is about 612.8337091417.

The spelling of 230158987 in words is "two hundred thirty million, one hundred fifty-eight thousand, nine hundred eighty-seven".