13668501 has 48 divisors (see below), whose sum is σ = 23639040. Its totient is φ = 6945120.

The previous prime is 13668497. The next prime is 13668517. The reversal of 13668501 is 10586631.

It is not a de Polignac number, because 13668501 - 2² = 13668497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13668521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127690 + ... + 127796.

It is an arithmetic number, because the mean of its divisors is an integer number (492480).

Almost surely, 2^13668501 is an apocalyptic number.

13668501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13668501 is a deficient number, since it is larger than the sum of its proper divisors (9970539).

13668501 is a wasteful number, since it uses less digits than its factorization.

13668501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 13668501 is about 3697.0935882122. The cubic root of 13668501 is about 239.0967261945.

The spelling of 13668501 in words is "thirteen million, six hundred sixty-eight thousand, five hundred one".