230688613 has 2 divisors, whose sum is σ = 230688614. Its totient is φ = 230688612.

The previous prime is 230688587. The next prime is 230688631. The reversal of 230688613 is 316886032.

Together with next prime (230688631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120165444 + 110523169 = 10962^2 + 10513^2 .

It is a cyclic number.

It is not a de Polignac number, because 230688613 - 2¹³ = 230680421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230686613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115344306 + 115344307.

It is an arithmetic number, because the mean of its divisors is an integer number (115344307).

Almost surely, 2^230688613 is an apocalyptic number.

It is an amenable number.

230688613 is a deficient number, since it is larger than the sum of its proper divisors (1).

230688613 is an equidigital number, since it uses as much as digits as its factorization.

230688613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 230688613 is about 15188.4368188435. The cubic root of 230688613 is about 613.3034192707.

The spelling of 230688613 in words is "two hundred thirty million, six hundred eighty-eight thousand, six hundred thirteen".