245223203 has 4 divisors (see below), whose sum is σ = 245490960. Its totient is φ = 244955448.

The previous prime is 245223191. The next prime is 245223229. The reversal of 245223203 is 302322542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302322542 = 2 ⋅151161271.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245223203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245223403) 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, 132500 + ... + 134337.

It is an arithmetic number, because the mean of its divisors is an integer number (61372740).

Almost surely, 2^245223203 is an apocalyptic number.

245223203 is a deficient number, since it is larger than the sum of its proper divisors (267757).

245223203 is an equidigital number, since it uses as much as digits as its factorization.

245223203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267756.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 245223203 is about 15659.6041776285. The cubic root of 245223203 is about 625.9224377972.

Adding to 245223203 its reverse (302322542), we get a palindrome (547545745).

The spelling of 245223203 in words is "two hundred forty-five million, two hundred twenty-three thousand, two hundred three".