13661206 has 8 divisors (see below), whose sum is σ = 22068144. Its totient is φ = 6305160.

The previous prime is 13661201. The next prime is 13661231. The reversal of 13661206 is 60216631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13661201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262690 + ... + 262741.

It is an arithmetic number, because the mean of its divisors is an integer number (2758518).

Almost surely, 2^13661206 is an apocalyptic number.

13661206 is a deficient number, since it is larger than the sum of its proper divisors (8406938).

13661206 is a wasteful number, since it uses less digits than its factorization.

13661206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525446.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 13661206 is about 3696.1068707493. The cubic root of 13661206 is about 239.0541826118.

Adding to 13661206 its reverse (60216631), we get a palindrome (73877837).

The spelling of 13661206 in words is "thirteen million, six hundred sixty-one thousand, two hundred six".