245230243 has 4 divisors (see below), whose sum is σ = 253140928. Its totient is φ = 237319560.

The previous prime is 245230241. The next prime is 245230261. The reversal of 245230243 is 342032542.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 245230243 - 2¹ = 245230241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245230241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3955296 + ... + 3955357.

It is an arithmetic number, because the mean of its divisors is an integer number (63285232).

Almost surely, 2^245230243 is an apocalyptic number.

245230243 is a deficient number, since it is larger than the sum of its proper divisors (7910685).

245230243 is an equidigital number, since it uses as much as digits as its factorization.

245230243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7910684.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 245230243 is about 15659.8289581975. The cubic root of 245230243 is about 625.9284275129.

Adding to 245230243 its reverse (342032542), we get a palindrome (587262785).

The spelling of 245230243 in words is "two hundred forty-five million, two hundred thirty thousand, two hundred forty-three".