230703509 has 4 divisors (see below), whose sum is σ = 230769420. Its totient is φ = 230637600.

The previous prime is 230703469. The next prime is 230703521. The reversal of 230703509 is 905307032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37576900 + 193126609 = 6130^2 + 13897^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230703509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230703559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27392 + ... + 34809.

It is an arithmetic number, because the mean of its divisors is an integer number (57692355).

Almost surely, 2^230703509 is an apocalyptic number.

It is an amenable number.

230703509 is a deficient number, since it is larger than the sum of its proper divisors (65911).

230703509 is an equidigital number, since it uses as much as digits as its factorization.

230703509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65910.

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 230703509 is about 15188.9271839719. The cubic root of 230703509 is about 613.3166197071.

The spelling of 230703509 in words is "two hundred thirty million, seven hundred three thousand, five hundred nine".