11705045 has 32 divisors (see below), whose sum is σ = 16865280. Its totient is φ = 7698240.

The previous prime is 11705041. The next prime is 11705077. The reversal of 11705045 is 54050711.

11705045 = 220² + 221² + ... + 357².

It is not a de Polignac number, because 11705045 - 2² = 11705041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11705045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11705041) 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 31 ways as a sum of consecutive naturals, for example, 23792 + ... + 24278.

It is an arithmetic number, because the mean of its divisors is an integer number (527040).

Almost surely, 2^11705045 is an apocalyptic number.

It is an amenable number.

11705045 is a deficient number, since it is larger than the sum of its proper divisors (5160235).

11705045 is a wasteful number, since it uses less digits than its factorization.

11705045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 11705045 is about 3421.2636554349. The cubic root of 11705045 is about 227.0514932960.

Adding to 11705045 its reverse (54050711), we get a palindrome (65755756).

The spelling of 11705045 in words is "eleven million, seven hundred five thousand, forty-five".