230218913 has 8 divisors (see below), whose sum is σ = 244312200. Its totient is φ = 216186880.

The previous prime is 230218903. The next prime is 230218931. The reversal of 230218913 is 319812032.

It can be written as a sum of positive squares in 4 ways, for example, as 108513889 + 121705024 = 10417^2 + 11032^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230218913 - 2⁸ = 230218657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (230218903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7448 + ... + 22713.

It is an arithmetic number, because the mean of its divisors is an integer number (30539025).

Almost surely, 2^230218913 is an apocalyptic number.

It is an amenable number.

230218913 is a deficient number, since it is larger than the sum of its proper divisors (14093287).

230218913 is a wasteful number, since it uses less digits than its factorization.

230218913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30627.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 230218913 is about 15172.9665194384. The cubic root of 230218913 is about 612.8868919241.

The spelling of 230218913 in words is "two hundred thirty million, two hundred eighteen thousand, nine hundred thirteen".