13520337 has 8 divisors (see below), whose sum is σ = 18187104. Its totient is φ = 8933568.

The previous prime is 13520333. The next prime is 13520363. The reversal of 13520337 is 73302531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13520337 - 2² = 13520333 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13520333) 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, 19603 + ... + 20280.

It is an arithmetic number, because the mean of its divisors is an integer number (2273388).

Almost surely, 2^13520337 is an apocalyptic number.

It is an amenable number.

13520337 is a deficient number, since it is larger than the sum of its proper divisors (4666767).

13520337 is a wasteful number, since it uses less digits than its factorization.

13520337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39999.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 13520337 is about 3677.0010878432. The cubic root of 13520337 is about 238.2296643801.

Adding to 13520337 its reverse (73302531), we get a palindrome (86822868).

The spelling of 13520337 in words is "thirteen million, five hundred twenty thousand, three hundred thirty-seven".