1173045134605 has 4 divisors (see below), whose sum is σ = 1407654161532. Its totient is φ = 938436107680.

The previous prime is 1173045134603. The next prime is 1173045134669. The reversal of 1173045134605 is 5064315403711.

It is a happy number.

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 136747602436 + 1036297532169 = 369794^2 + 1017987^2 .

It is not a de Polignac number, because 1173045134605 - 2¹ = 1173045134603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1173045134603) 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 in 3 ways as a sum of consecutive naturals, for example, 117304513456 + ... + 117304513465.

It is an arithmetic number, because the mean of its divisors is an integer number (351913540383).

Almost surely, 2^{1173045134605} is an apocalyptic number.

It is an amenable number.

1173045134605 is a deficient number, since it is larger than the sum of its proper divisors (234609026927).

1173045134605 is an equidigital number, since it uses as much as digits as its factorization.

1173045134605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234609026926.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 1173045134605 in words is "one trillion, one hundred seventy-three billion, forty-five million, one hundred thirty-four thousand, six hundred five".