13651 has 8 divisors (see below), whose sum is σ = 15984. Its totient is φ = 11520.
The previous prime is 13649. The next prime is 13669. The reversal of 13651 is 15631.
13651 is nontrivially palindromic in base 8 and base 16.
13651 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a 8-Lehmer number, since φ(13651) divides (13651-1)8.
It is a cyclic number.
It is not a de Polignac number, because 13651 - 21 = 13649 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13681) 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, 151 + ... + 223.
It is an arithmetic number, because the mean of its divisors is an integer number (1998).
213651 is an apocalyptic number.
13651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
13651 is a deficient number, since it is larger than the sum of its proper divisors (2333).
13651 is a wasteful number, since it uses less digits than its factorization.
13651 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 101.
The product of its digits is 90, while the sum is 16.
The square root of 13651 is about 116.8374939820. The cubic root of 13651 is about 23.8994636995.
The spelling of 13651 in words is "thirteen thousand, six hundred fifty-one".
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