245436403213 has 2 divisors, whose sum is σ = 245436403214. Its totient is φ = 245436403212.

The previous prime is 245436403171. The next prime is 245436403229. The reversal of 245436403213 is 312304634542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128251366884 + 117185036329 = 358122^2 + 342323^2 .

It is a cyclic number.

It is not a de Polignac number, because 245436403213 - 2²⁹ = 244899532301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245436403243) 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 as a sum of consecutive naturals, namely, 122718201606 + 122718201607.

It is an arithmetic number, because the mean of its divisors is an integer number (122718201607).

Almost surely, 2^245436403213 is an apocalyptic number.

It is an amenable number.

245436403213 is a deficient number, since it is larger than the sum of its proper divisors (1).

245436403213 is an equidigital number, since it uses as much as digits as its factorization.

245436403213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 37.

The spelling of 245436403213 in words is "two hundred forty-five billion, four hundred thirty-six million, four hundred three thousand, two hundred thirteen".