13520534 has 16 divisors (see below), whose sum is σ = 20805120. Its totient is φ = 6587880.

The previous prime is 13520531. The next prime is 13520579. The reversal of 13520534 is 43502531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13520531) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12599 + ... + 13629.

It is an arithmetic number, because the mean of its divisors is an integer number (1300320).

Almost surely, 2^13520534 is an apocalyptic number.

13520534 is a deficient number, since it is larger than the sum of its proper divisors (7284586).

13520534 is a wasteful number, since it uses less digits than its factorization.

13520534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 13520534 is about 3677.0278758802. The cubic root of 13520534 is about 238.2308214276.

The spelling of 13520534 in words is "thirteen million, five hundred twenty thousand, five hundred thirty-four".