245593 has 2 divisors, whose sum is σ = 245594. Its totient is φ = 245592.

The previous prime is 245591. The next prime is 245621. The reversal of 245593 is 395542.

It is an a-pointer prime, because the next prime (245621) can be obtained adding 245593 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219024 + 26569 = 468^2 + 163^2 .

It is a cyclic number.

It is not a de Polignac number, because 245593 - 2¹ = 245591 is a prime.

Together with 245591, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (245591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122796 + 122797.

It is an arithmetic number, because the mean of its divisors is an integer number (122797).

2²⁴⁵⁵⁹³ is an apocalyptic number.

It is an amenable number.

245593 is a deficient number, since it is larger than the sum of its proper divisors (1).

245593 is an equidigital number, since it uses as much as digits as its factorization.

245593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 28.

The square root of 245593 is about 495.5734052590. The cubic root of 245593 is about 62.6236910469.

It can be divided in two parts, 245 and 593, that added together give a palindrome (838).

The spelling of 245593 in words is "two hundred forty-five thousand, five hundred ninety-three".