230020517 has 4 divisors (see below), whose sum is σ = 242126880. Its totient is φ = 217914156.

The previous prime is 230020513. The next prime is 230020541. The reversal of 230020517 is 715020032.

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 a cyclic number.

It is not a de Polignac number, because 230020517 - 2² = 230020513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230020513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6053153 + ... + 6053190.

It is an arithmetic number, because the mean of its divisors is an integer number (60531720).

Almost surely, 2^230020517 is an apocalyptic number.

It is an amenable number.

230020517 is a deficient number, since it is larger than the sum of its proper divisors (12106363).

230020517 is a wasteful number, since it uses less digits than its factorization.

230020517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12106362.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 230020517 is about 15166.4272984774. The cubic root of 230020517 is about 612.7107852615.

Adding to 230020517 its reverse (715020032), we get a palindrome (945040549).

The spelling of 230020517 in words is "two hundred thirty million, twenty thousand, five hundred seventeen".