1245241340579 has 4 divisors (see below), whose sum is σ = 1278896511984. Its totient is φ = 1211586169176.

The previous prime is 1245241340509. The next prime is 1245241340627. The reversal of 1245241340579 is 9750431425421.

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 1245241340579 - 2⁸ = 1245241340323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1245241340509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16827585647 + ... + 16827585720.

It is an arithmetic number, because the mean of its divisors is an integer number (319724127996).

Almost surely, 2^{1245241340579} is an apocalyptic number.

1245241340579 is a deficient number, since it is larger than the sum of its proper divisors (33655171405).

1245241340579 is an equidigital number, since it uses as much as digits as its factorization.

1245241340579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33655171404.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 1245241340579 in words is "one trillion, two hundred forty-five billion, two hundred forty-one million, three hundred forty thousand, five hundred seventy-nine".