13664148 has 12 divisors (see below), whose sum is σ = 31883040. Its totient is φ = 4554712.

The previous prime is 13664143. The next prime is 13664159. The reversal of 13664148 is 84146631.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13664143) 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 3 ways as a sum of consecutive naturals, for example, 569328 + ... + 569351.

It is an arithmetic number, because the mean of its divisors is an integer number (2656920).

Almost surely, 2^13664148 is an apocalyptic number.

It is an amenable number.

13664148 is an abundant number, since it is smaller than the sum of its proper divisors (18218892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13664148 is a wasteful number, since it uses less digits than its factorization.

13664148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138686 (or 1138684 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 13664148 is about 3696.5048356522. The cubic root of 13664148 is about 239.0713418320.

The spelling of 13664148 in words is "thirteen million, six hundred sixty-four thousand, one hundred forty-eight".