13045647 has 16 divisors (see below), whose sum is σ = 19388160. Its totient is φ = 7754112.

The previous prime is 13045631. The next prime is 13045657. The reversal of 13045647 is 74654031.

13045647 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13045647 - 2⁴ = 13045631 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13045657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5763 + ... + 7700.

It is an arithmetic number, because the mean of its divisors is an integer number (1211760).

Almost surely, 2^13045647 is an apocalyptic number.

13045647 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13045647 is a deficient number, since it is larger than the sum of its proper divisors (6342513).

13045647 is a wasteful number, since it uses less digits than its factorization.

13045647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13502.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 13045647 is about 3611.8758284304. The cubic root of 13045647 is about 235.4083559374.

Adding to 13045647 its reverse (74654031), we get a palindrome (87699678).

The spelling of 13045647 in words is "thirteen million, forty-five thousand, six hundred forty-seven".