13662147 has 8 divisors (see below), whose sum is σ = 18309456. Its totient is φ = 9061472.

The previous prime is 13662107. The next prime is 13662149. The reversal of 13662147 is 74126631.

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

It is a cyclic number.

It is not a de Polignac number, because 13662147 - 2¹⁴ = 13645763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13662149) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10968 + ... + 12149.

It is an arithmetic number, because the mean of its divisors is an integer number (2288682).

Almost surely, 2^13662147 is an apocalyptic number.

13662147 is a deficient number, since it is larger than the sum of its proper divisors (4647309).

13662147 is a wasteful number, since it uses less digits than its factorization.

13662147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23317.

The product of its digits is 6048, while the sum is 30.

The square root of 13662147 is about 3696.2341646600. The cubic root of 13662147 is about 239.0596712639.

Adding to 13662147 its reverse (74126631), we get a palindrome (87788778).

The spelling of 13662147 in words is "thirteen million, six hundred sixty-two thousand, one hundred forty-seven".