Search a number
230719 is a prime number

230719 has 2 divisors, whose sum is σ = 230720. Its totient is φ = 230718.

The previous prime is 230693. The next prime is 230729. The reversal of 230719 is 917032.

It can be divided in two parts, 230 and 719, that added together give a palindrome (949).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230719 - 213 = 222527 is a prime.

It is a super-2 number, since 2×2307192 = 106462513922, which contains 22 as substring.

It is a Chen prime.

It is equal to p20497 and since 230719 and 20497 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230729) 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 as a sum of consecutive naturals, namely, 115359 + 115360.

It is an arithmetic number, because the mean of its divisors is an integer number (115360).

2230719 is an apocalyptic number.

230719 is a deficient number, since it is larger than the sum of its proper divisors (1).

230719 is an equidigital number, since it uses as much as digits as its factorization.

230719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 230719 is about 480.3321767277. The cubic root of 230719 is about 61.3330346814. Note that the first 3 decimals are identical.

The spelling of 230719 in words is "two hundred thirty thousand, seven hundred nineteen".