13530636 has 36 divisors (see below), whose sum is σ = 39089232. Its totient is φ = 3865824.

The previous prime is 13530611. The next prime is 13530653. The reversal of 13530636 is 63603531.

13530636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×13530636² = 366156221128992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26595 + ... + 27098.

It is an arithmetic number, because the mean of its divisors is an integer number (1085812).

Almost surely, 2^13530636 is an apocalyptic number.

It is an amenable number.

13530636 is an abundant number, since it is smaller than the sum of its proper divisors (25558596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13530636 is a wasteful number, since it uses less digits than its factorization.

13530636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53710 (or 53705 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 13530636 is about 3678.4012831664. The cubic root of 13530636 is about 238.2901388242.

The spelling of 13530636 in words is "thirteen million, five hundred thirty thousand, six hundred thirty-six".