13113545 has 8 divisors (see below), whose sum is σ = 16662024. Its totient is φ = 9873664.

The previous prime is 13113521. The next prime is 13113547. The reversal of 13113545 is 54531131.

It can be written as a sum of positive squares in 4 ways, for example, as 182329 + 12931216 = 427^2 + 3596^2 .

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 13113545 - 2¹⁸ = 12851401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13113545.

It is not an unprimeable number, because it can be changed into a prime (13113547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77054 + ... + 77223.

It is an arithmetic number, because the mean of its divisors is an integer number (2082753).

Almost surely, 2^13113545 is an apocalyptic number.

It is an amenable number.

13113545 is a deficient number, since it is larger than the sum of its proper divisors (3548479).

13113545 is a wasteful number, since it uses less digits than its factorization.

13113545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154299.

The product of its digits is 900, while the sum is 23.

The square root of 13113545 is about 3621.2629012542. The cubic root of 13113545 is about 235.8160553157.

Adding to 13113545 its reverse (54531131), we get a palindrome (67644676).

The spelling of 13113545 in words is "thirteen million, one hundred thirteen thousand, five hundred forty-five".