245249 has 4 divisors (see below), whose sum is σ = 255936. Its totient is φ = 234564.

The previous prime is 245209. The next prime is 245251. The reversal of 245249 is 942542.

245249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245249 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 (245209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5309 + ... + 5354.

It is an arithmetic number, because the mean of its divisors is an integer number (63984).

It is a Proth number, since it is equal to 479 ⋅ 2⁹ + 1 and 479 < 2⁹.

2²⁴⁵²⁴⁹ is an apocalyptic number.

It is an amenable number.

245249 is a deficient number, since it is larger than the sum of its proper divisors (10687).

245249 is a wasteful number, since it uses less digits than its factorization.

245249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10686.

The product of its digits is 2880, while the sum is 26.

The square root of 245249 is about 495.2262109380. The cubic root of 245249 is about 62.5944385632.

It can be divided in two parts, 245 and 249, that added together give a palindrome (494).

The spelling of 245249 in words is "two hundred forty-five thousand, two hundred forty-nine".