13558945 has 16 divisors (see below), whose sum is σ = 17321040. Its totient is φ = 10153984.

The previous prime is 13558939. The next prime is 13558949. The reversal of 13558945 is 54985531.

13558945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 221841 + 13337104 = 471^2 + 3652^2 .

It is a cyclic number.

It is not a de Polignac number, because 13558945 - 2¹³ = 13550753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13558898 and 13558907.

It is not an unprimeable number, because it can be changed into a prime (13558949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22569 + ... + 23161.

It is an arithmetic number, because the mean of its divisors is an integer number (1082565).

Almost surely, 2^13558945 is an apocalyptic number.

It is an amenable number.

13558945 is a deficient number, since it is larger than the sum of its proper divisors (3762095).

13558945 is a wasteful number, since it uses less digits than its factorization.

13558945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884.

The product of its digits is 108000, while the sum is 40.

The square root of 13558945 is about 3682.2472757815. The cubic root of 13558945 is about 238.4562077973.

The spelling of 13558945 in words is "thirteen million, five hundred fifty-eight thousand, nine hundred forty-five".