13523545 has 16 divisors (see below), whose sum is σ = 18943488. Its totient is φ = 9074880.

The previous prime is 13523539. The next prime is 13523557. The reversal of 13523545 is 54532531.

It is not a de Polignac number, because 13523545 - 2⁵ = 13523513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2466 + ... + 5755.

It is an arithmetic number, because the mean of its divisors is an integer number (1183968).

Almost surely, 2^13523545 is an apocalyptic number.

It is an amenable number.

13523545 is a deficient number, since it is larger than the sum of its proper divisors (5419943).

13523545 is an equidigital number, since it uses as much as digits as its factorization.

13523545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8280.

The product of its digits is 9000, while the sum is 28.

The square root of 13523545 is about 3677.4372870248. The cubic root of 13523545 is about 238.2485046483.

The spelling of 13523545 in words is "thirteen million, five hundred twenty-three thousand, five hundred forty-five".