13045305 has 64 divisors (see below), whose sum is σ = 27095040. Its totient is φ = 5204736.

The previous prime is 13045303. The next prime is 13045309. The reversal of 13045305 is 50354031.

13045305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13045305 - 2¹ = 13045303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13045303) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25684 + ... + 26186.

It is an arithmetic number, because the mean of its divisors is an integer number (423360).

Almost surely, 2^13045305 is an apocalyptic number.

13045305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13045305 is an abundant number, since it is smaller than the sum of its proper divisors (14049735).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13045305 is a wasteful number, since it uses less digits than its factorization.

13045305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 13045305 is about 3611.8284842999. The cubic root of 13045305 is about 235.4062987924.

Adding to 13045305 its reverse (50354031), we get a palindrome (63399336).

The spelling of 13045305 in words is "thirteen million, forty-five thousand, three hundred five".