13520090 has 32 divisors (see below), whose sum is σ = 26282880. Its totient is φ = 4992064.

The previous prime is 13520081. The next prime is 13520099. The reversal of 13520090 is 9002531.

It is an interprime number because it is at equal distance from previous prime (13520081) and next prime (13520099).

It is not an unprimeable number, because it can be changed into a prime (13520099) 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 15 ways as a sum of consecutive naturals, for example, 5657 + ... + 7683.

It is an arithmetic number, because the mean of its divisors is an integer number (821340).

Almost surely, 2^13520090 is an apocalyptic number.

13520090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13520090 is a deficient number, since it is larger than the sum of its proper divisors (12762790).

13520090 is a wasteful number, since it uses less digits than its factorization.

13520090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 13520090 is about 3676.9675005363. The cubic root of 13520090 is about 238.2282136498.

The spelling of 13520090 in words is "thirteen million, five hundred twenty thousand, ninety".