13540012 has 12 divisors (see below), whose sum is σ = 24246376. Its totient is φ = 6612480.

The previous prime is 13540001. The next prime is 13540073. The reversal of 13540012 is 21004531.

It is an unprimeable number.

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, 39189 + ... + 39532.

Almost surely, 2^13540012 is an apocalyptic number.

It is an amenable number.

13540012 is a deficient number, since it is larger than the sum of its proper divisors (10706364).

13540012 is a wasteful number, since it uses less digits than its factorization.

13540012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78768 (or 78766 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 13540012 is about 3679.6755291737. The cubic root of 13540012 is about 238.3451668480.

Adding to 13540012 its reverse (21004531), we get a palindrome (34544543).

The spelling of 13540012 in words is "thirteen million, five hundred forty thousand, twelve".