1047315525745 has 4 divisors (see below), whose sum is σ = 1256778630900. Its totient is φ = 837852420592.

The previous prime is 1047315525691. The next prime is 1047315525821. The reversal of 1047315525745 is 5475255137401.

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 635355656464 + 411959869281 = 797092^2 + 641841^2 .

It is a cyclic number.

It is not a de Polignac number, because 1047315525745 - 2⁹ = 1047315525233 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104731552570 + ... + 104731552579.

It is an arithmetic number, because the mean of its divisors is an integer number (314194657725).

Almost surely, 2^{1047315525745} is an apocalyptic number.

It is an amenable number.

1047315525745 is a deficient number, since it is larger than the sum of its proper divisors (209463105155).

1047315525745 is an equidigital number, since it uses as much as digits as its factorization.

1047315525745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209463105154.

The product of its (nonzero) digits is 2940000, while the sum is 49.

The spelling of 1047315525745 in words is "one trillion, forty-seven billion, three hundred fifteen million, five hundred twenty-five thousand, seven hundred forty-five".