1245660845313 has 4 divisors (see below), whose sum is σ = 1660881127088. Its totient is φ = 830440563540.

The previous prime is 1245660845309. The next prime is 1245660845323. The reversal of 1245660845313 is 3135480665421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1245660845313 - 2² = 1245660845309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1245660845323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207610140883 + ... + 207610140888.

It is an arithmetic number, because the mean of its divisors is an integer number (415220281772).

Almost surely, 2^{1245660845313} is an apocalyptic number.

It is an amenable number.

1245660845313 is a deficient number, since it is larger than the sum of its proper divisors (415220281775).

1245660845313 is an equidigital number, since it uses as much as digits as its factorization.

1245660845313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415220281774.

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 1245660845313 in words is "one trillion, two hundred forty-five billion, six hundred sixty million, eight hundred forty-five thousand, three hundred thirteen".