230539809 has 4 divisors (see below), whose sum is σ = 307386416. Its totient is φ = 153693204.

The previous prime is 230539807. The next prime is 230539819. The reversal of 230539809 is 908935032.

230539809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 230539809 - 2¹ = 230539807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230539807) 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, 38423299 + ... + 38423304.

It is an arithmetic number, because the mean of its divisors is an integer number (76846604).

Almost surely, 2^230539809 is an apocalyptic number.

It is an amenable number.

230539809 is a deficient number, since it is larger than the sum of its proper divisors (76846607).

230539809 is an equidigital number, since it uses as much as digits as its factorization.

230539809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76846606.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 230539809 is about 15183.5374336813. The cubic root of 230539809 is about 613.1715219474.

The spelling of 230539809 in words is "two hundred thirty million, five hundred thirty-nine thousand, eight hundred nine".