13536649 has 8 divisors (see below), whose sum is σ = 16004160. Its totient is φ = 11202576.

The previous prime is 13536643. The next prime is 13536659. The reversal of 13536649 is 94663531.

13536649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13536649 - 2⁵ = 13536617 is a prime.

It is a super-2 number, since 2×13536649² = 366481732298402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13536643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33139 + ... + 33544.

It is an arithmetic number, because the mean of its divisors is an integer number (2000520).

Almost surely, 2^13536649 is an apocalyptic number.

It is an amenable number.

13536649 is a deficient number, since it is larger than the sum of its proper divisors (2467511).

13536649 is an equidigital number, since it uses as much as digits as its factorization.

13536649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66719.

The product of its digits is 58320, while the sum is 37.

The square root of 13536649 is about 3679.2185311558. The cubic root of 13536649 is about 238.3254322232.

The spelling of 13536649 in words is "thirteen million, five hundred thirty-six thousand, six hundred forty-nine".