13754721 has 8 divisors (see below), whose sum is σ = 18787104. Its totient is φ = 8946080.

The previous prime is 13754693. The next prime is 13754761. The reversal of 13754721 is 12745731.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13754721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13754761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55791 + ... + 56036.

It is an arithmetic number, because the mean of its divisors is an integer number (2348388).

Almost surely, 2^13754721 is an apocalyptic number.

It is an amenable number.

13754721 is a deficient number, since it is larger than the sum of its proper divisors (5032383).

13754721 is a wasteful number, since it uses less digits than its factorization.

13754721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111871.

The product of its digits is 5880, while the sum is 30.

The square root of 13754721 is about 3708.7357684257. The cubic root of 13754721 is about 239.5984082529.

The spelling of 13754721 in words is "thirteen million, seven hundred fifty-four thousand, seven hundred twenty-one".