230808139 has 4 divisors (see below), whose sum is σ = 230920200. Its totient is φ = 230696080.

The previous prime is 230808103. The next prime is 230808157. The reversal of 230808139 is 931808032.

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 230808139 - 2⁹ = 230807627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230808199) 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, 52882 + ... + 57079.

It is an arithmetic number, because the mean of its divisors is an integer number (57730050).

Almost surely, 2^230808139 is an apocalyptic number.

230808139 is a deficient number, since it is larger than the sum of its proper divisors (112061).

230808139 is a wasteful number, since it uses less digits than its factorization.

230808139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112060.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 230808139 is about 15192.3710789330. The cubic root of 230808139 is about 613.4093240032.

The spelling of 230808139 in words is "two hundred thirty million, eight hundred eight thousand, one hundred thirty-nine".