245305420334245 has 4 divisors (see below), whose sum is σ = 294366504401100. Its totient is φ = 196244336267392.

The previous prime is 245305420334237. The next prime is 245305420334267. The reversal of 245305420334245 is 542433024503542.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45936498856609 + 199368921477636 = 6777647^2 + 14119806^2 .

It is a cyclic number.

It is not a de Polignac number, because 245305420334245 - 2³ = 245305420334237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245305420334195 and 245305420334204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24530542033420 + ... + 24530542033429.

It is an arithmetic number, because the mean of its divisors is an integer number (73591626100275).

Almost surely, 2^{245305420334245} is an apocalyptic number.

It is an amenable number.

245305420334245 is a deficient number, since it is larger than the sum of its proper divisors (49061084066855).

245305420334245 is an equidigital number, since it uses as much as digits as its factorization.

245305420334245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49061084066854.

The product of its (nonzero) digits is 6912000, while the sum is 46.

Adding to 245305420334245 its reverse (542433024503542), we get a palindrome (787738444837787).

The spelling of 245305420334245 in words is "two hundred forty-five trillion, three hundred five billion, four hundred twenty million, three hundred thirty-four thousand, two hundred forty-five".