15941 has 4 divisors (see below), whose sum is σ = 16800. Its totient is φ = 15084.
The previous prime is 15937. The next prime is 15959. The reversal of 15941 is 14951.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 15941 - 22 = 15937 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a nialpdrome in base 7.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15901) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401 + ... + 438.
It is an arithmetic number, because the mean of its divisors is an integer number (4200).
215941 is an apocalyptic number.
It is an amenable number.
15941 is a deficient number, since it is larger than the sum of its proper divisors (859).
15941 is an equidigital number, since it uses as much as digits as its factorization.
15941 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 858.
The product of its digits is 180, while the sum is 20.
The square root of 15941 is about 126.2576730342. The cubic root of 15941 is about 25.1674097895.
Subtracting from 15941 its reverse (14951), we obtain a triangular number (990 = T44).
The spelling of 15941 in words is "fifteen thousand, nine hundred forty-one".
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