13542636 has 12 divisors (see below), whose sum is σ = 31599512. Its totient is φ = 4514208.

The previous prime is 13542577. The next prime is 13542637. The reversal of 13542636 is 63624531.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13542637) 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 3 ways as a sum of consecutive naturals, for example, 564265 + ... + 564288.

Almost surely, 2^13542636 is an apocalyptic number.

It is an amenable number.

13542636 is an abundant number, since it is smaller than the sum of its proper divisors (18056876).

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

13542636 is a wasteful number, since it uses less digits than its factorization.

13542636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128560 (or 1128558 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 13542636 is about 3680.0320650777. The cubic root of 13542636 is about 238.3605626325.

The spelling of 13542636 in words is "thirteen million, five hundred forty-two thousand, six hundred thirty-six".