13561045 has 8 divisors (see below), whose sum is σ = 16293024. Its totient is φ = 10835664.

The previous prime is 13561027. The next prime is 13561049. The reversal of 13561045 is 54016531.

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 13561045 - 2⁵ = 13561013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13561049) 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, 7302 + ... + 8968.

It is an arithmetic number, because the mean of its divisors is an integer number (2036628).

Almost surely, 2^13561045 is an apocalyptic number.

It is an amenable number.

13561045 is a deficient number, since it is larger than the sum of its proper divisors (2731979).

13561045 is a wasteful number, since it uses less digits than its factorization.

13561045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3299.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 13561045 is about 3682.5324166937. The cubic root of 13561045 is about 238.4685178058.

Adding to 13561045 its reverse (54016531), we get a palindrome (67577576).

It can be divided in two parts, 1356 and 1045, that added together give a 4-th power (2401 = 7⁴).

The spelling of 13561045 in words is "thirteen million, five hundred sixty-one thousand, forty-five".