245206 has 8 divisors (see below), whose sum is σ = 396144. Its totient is φ = 113160.

The previous prime is 245183. The next prime is 245209. The reversal of 245206 is 602542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245209) by changing a digit.

245206 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 4690 + ... + 4741.

It is an arithmetic number, because the mean of its divisors is an integer number (49518).

2²⁴⁵²⁰⁶ is an apocalyptic number.

245206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

245206 is a deficient number, since it is larger than the sum of its proper divisors (150938).

245206 is a wasteful number, since it uses less digits than its factorization.

245206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9446.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 245206 is about 495.1827945315. The cubic root of 245206 is about 62.5907800798.

Adding to 245206 its reverse (602542), we get a palindrome (847748).

The spelling of 245206 in words is "two hundred forty-five thousand, two hundred six".