13022545 has 4 divisors (see below), whose sum is σ = 15627060. Its totient is φ = 10418032.

The previous prime is 13022521. The next prime is 13022551. The reversal of 13022545 is 54522031.

13022545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54522031 = 5867 ⋅9293.

It can be written as a sum of positive squares in 2 ways, for example, as 3560769 + 9461776 = 1887^2 + 3076^2 .

It is a cyclic number.

It is not a de Polignac number, because 13022545 - 2⁷ = 13022417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1302250 + ... + 1302259.

It is an arithmetic number, because the mean of its divisors is an integer number (3906765).

Almost surely, 2^13022545 is an apocalyptic number.

It is an amenable number.

13022545 is a deficient number, since it is larger than the sum of its proper divisors (2604515).

13022545 is an equidigital number, since it uses as much as digits as its factorization.

13022545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604514.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 13022545 is about 3608.6763501317. The cubic root of 13022545 is about 235.2693155046.

Adding to 13022545 its reverse (54522031), we get a palindrome (67544576).

The spelling of 13022545 in words is "thirteen million, twenty-two thousand, five hundred forty-five".