13520075 has 6 divisors (see below), whose sum is σ = 16764924. Its totient is φ = 10816040.

The previous prime is 13520071. The next prime is 13520081. The reversal of 13520075 is 57002531.

It is not a de Polignac number, because 13520075 - 2² = 13520071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13520075.

It is not an unprimeable number, because it can be changed into a prime (13520071) 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 5 ways as a sum of consecutive naturals, for example, 270377 + ... + 270426.

It is an arithmetic number, because the mean of its divisors is an integer number (2794154).

Almost surely, 2^13520075 is an apocalyptic number.

13520075 is a deficient number, since it is larger than the sum of its proper divisors (3244849).

13520075 is an equidigital number, since it uses as much as digits as its factorization.

13520075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540813 (or 540808 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 13520075 is about 3676.9654608114. The cubic root of 13520075 is about 238.2281255482.

The spelling of 13520075 in words is "thirteen million, five hundred twenty thousand, seventy-five".