13668901 has 8 divisors (see below), whose sum is σ = 14581080. Its totient is φ = 12768768.

The previous prime is 13668881. The next prime is 13668911. The reversal of 13668901 is 10986631.

It can be written as a sum of positive squares in 4 ways, for example, as 1600225 + 12068676 = 1265^2 + 3474^2 .

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

It is not a de Polignac number, because 13668901 - 2¹⁷ = 13537829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13668911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606 + ... + 5263.

It is an arithmetic number, because the mean of its divisors is an integer number (1822635).

Almost surely, 2^13668901 is an apocalyptic number.

It is an amenable number.

13668901 is a deficient number, since it is larger than the sum of its proper divisors (912179).

13668901 is a wasteful number, since it uses less digits than its factorization.

13668901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6023.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 13668901 is about 3697.1476843643. The cubic root of 13668901 is about 239.0990585097.

The spelling of 13668901 in words is "thirteen million, six hundred sixty-eight thousand, nine hundred one".