13540216 has 16 divisors (see below), whose sum is σ = 26263800. Its totient is φ = 6536544.

The previous prime is 13540207. The next prime is 13540223. The reversal of 13540216 is 61204531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28950 + ... + 29413.

Almost surely, 2^13540216 is an apocalyptic number.

It is an amenable number.

13540216 is a deficient number, since it is larger than the sum of its proper divisors (12723584).

13540216 is a wasteful number, since it uses less digits than its factorization.

13540216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58398 (or 58394 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13540216 is about 3679.7032489047. The cubic root of 13540216 is about 238.3463638476.

Adding to 13540216 its reverse (61204531), we get a palindrome (74744747).

The spelling of 13540216 in words is "thirteen million, five hundred forty thousand, two hundred sixteen".