245459 has 4 divisors (see below), whose sum is σ = 246480. Its totient is φ = 244440.

The previous prime is 245437. The next prime is 245471. The reversal of 245459 is 954542.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 245459 - 2¹² = 241363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245419) 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 in 3 ways as a sum of consecutive naturals, for example, 74 + ... + 704.

It is an arithmetic number, because the mean of its divisors is an integer number (61620).

2²⁴⁵⁴⁵⁹ is an apocalyptic number.

245459 is a deficient number, since it is larger than the sum of its proper divisors (1021).

245459 is an equidigital number, since it uses as much as digits as its factorization.

245459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its digits is 7200, while the sum is 29.

The square root of 245459 is about 495.4381898885. The cubic root of 245459 is about 62.6122994339.

The spelling of 245459 in words is "two hundred forty-five thousand, four hundred fifty-nine".