13433545 has 4 divisors (see below), whose sum is σ = 16120260. Its totient is φ = 10746832.

The previous prime is 13433543. The next prime is 13433549. The reversal of 13433545 is 54533431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54533431 = 2659 ⋅20509.

It can be written as a sum of positive squares in 2 ways, for example, as 4511376 + 8922169 = 2124^2 + 2987^2 .

It is a cyclic number.

It is not a de Polignac number, because 13433545 - 2¹ = 13433543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13433543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1343350 + ... + 1343359.

It is an arithmetic number, because the mean of its divisors is an integer number (4030065).

Almost surely, 2^13433545 is an apocalyptic number.

It is an amenable number.

13433545 is a deficient number, since it is larger than the sum of its proper divisors (2686715).

13433545 is an equidigital number, since it uses as much as digits as its factorization.

13433545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686714.

The product of its digits is 10800, while the sum is 28.

The square root of 13433545 is about 3665.1800774314. The cubic root of 13433545 is about 237.7188085070.

Adding to 13433545 its reverse (54533431), we get a palindrome (67966976).

The spelling of 13433545 in words is "thirteen million, four hundred thirty-three thousand, five hundred forty-five".