245320212587 has 4 divisors (see below), whose sum is σ = 248076619560. Its totient is φ = 242563805616.

The previous prime is 245320212581. The next prime is 245320212601. The reversal of 245320212587 is 785212023542.

245320212587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 245320212587 - 2⁶ = 245320212523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245320212581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1378203353 + ... + 1378203530.

It is an arithmetic number, because the mean of its divisors is an integer number (62019154890).

Almost surely, 2^245320212587 is an apocalyptic number.

245320212587 is a deficient number, since it is larger than the sum of its proper divisors (2756406973).

245320212587 is an equidigital number, since it uses as much as digits as its factorization.

245320212587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756406972.

The product of its (nonzero) digits is 268800, while the sum is 41.

The spelling of 245320212587 in words is "two hundred forty-five billion, three hundred twenty million, two hundred twelve thousand, five hundred eighty-seven".