13122545 has 8 divisors (see below), whose sum is σ = 15862824. Its totient is φ = 10420864.

The previous prime is 13122539. The next prime is 13122547. The reversal of 13122545 is 54522131.

It can be written as a sum of positive squares in 4 ways, for example, as 47089 + 13075456 = 217^2 + 3616^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13122545 - 2⁶ = 13122481 is a prime.

It is a Duffinian number.

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 13122545.

It is not an unprimeable number, because it can be changed into a prime (13122547) 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 7 ways as a sum of consecutive naturals, for example, 8894 + ... + 10263.

It is an arithmetic number, because the mean of its divisors is an integer number (1982853).

Almost surely, 2^13122545 is an apocalyptic number.

It is an amenable number.

13122545 is a deficient number, since it is larger than the sum of its proper divisors (2740279).

13122545 is a wasteful number, since it uses less digits than its factorization.

13122545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19299.

The product of its digits is 1200, while the sum is 23.

The square root of 13122545 is about 3622.5053485123. The cubic root of 13122545 is about 235.8699908750.

Adding to 13122545 its reverse (54522131), we get a palindrome (67644676).

The spelling of 13122545 in words is "thirteen million, one hundred twenty-two thousand, five hundred forty-five".