13538206 has 24 divisors (see below), whose sum is σ = 22857912. Its totient is φ = 6006000.

The previous prime is 13538197. The next prime is 13538233. The reversal of 13538206 is 60283531.

13538206 is a nontrivial binomial coefficient, being equal to C(5204, 2).

It is a congruent number.

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, 9756 + ... + 11056.

It is an arithmetic number, because the mean of its divisors is an integer number (952413).

Almost surely, 2^13538206 is an apocalyptic number.

13538206 is the 5203-rd triangular number and also the 2602-nd hexagonal number.

13538206 is the 1735-th centered nonagonal number.

13538206 is a deficient number, since it is larger than the sum of its proper divisors (9319706).

13538206 is a wasteful number, since it uses less digits than its factorization.

13538206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368 (or 1357 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 13538206 is about 3679.4301189179. The cubic root of 13538206 is about 238.3345693559.

It can be divided in two parts, 1353 and 8206, that added together give a palindrome (9559).

The spelling of 13538206 in words is "thirteen million, five hundred thirty-eight thousand, two hundred six".