13320545 has 16 divisors (see below), whose sum is σ = 18859008. Its totient is φ = 8838720.

The previous prime is 13320533. The next prime is 13320551. The reversal of 13320545 is 54502331.

13320545 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 13320545 - 2¹⁰ = 13319521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13320545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5054 + ... + 7223.

It is an arithmetic number, because the mean of its divisors is an integer number (1178688).

Almost surely, 2^13320545 is an apocalyptic number.

It is an amenable number.

13320545 is a deficient number, since it is larger than the sum of its proper divisors (5538463).

13320545 is a wasteful number, since it uses less digits than its factorization.

13320545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12320.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 13320545 is about 3649.7321819553. The cubic root of 13320545 is about 237.0503848203.

Adding to 13320545 its reverse (54502331), we get a palindrome (67822876).

The spelling of 13320545 in words is "thirteen million, three hundred twenty thousand, five hundred forty-five".