13705045 has 4 divisors (see below), whose sum is σ = 16446060. Its totient is φ = 10964032.

The previous prime is 13705031. The next prime is 13705057. The reversal of 13705045 is 54050731.

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 1912689 + 11792356 = 1383^2 + 3434^2 .

It is a cyclic number.

It is not a de Polignac number, because 13705045 - 2¹⁹ = 13180757 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 1370500 + ... + 1370509.

It is an arithmetic number, because the mean of its divisors is an integer number (4111515).

Almost surely, 2^13705045 is an apocalyptic number.

It is an amenable number.

13705045 is a deficient number, since it is larger than the sum of its proper divisors (2741015).

13705045 is an equidigital number, since it uses as much as digits as its factorization.

13705045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741014.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 13705045 is about 3702.0325498299. The cubic root of 13705045 is about 239.3096189720.

Adding to 13705045 its reverse (54050731), we get a palindrome (67755776).

The spelling of 13705045 in words is "thirteen million, seven hundred five thousand, forty-five".