13913 has 2 divisors, whose sum is σ = 13914. Its totient is φ = 13912.

The previous prime is 13907. The next prime is 13921. The reversal of 13913 is 31931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12544 + 1369 = 112^2 + 37^2 .

It is a cyclic number.

It is not a de Polignac number, because 13913 - 2¹⁰ = 12889 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 13891 and 13900.

It is not a weakly prime, because it can be changed into another prime (13903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6956 + 6957.

It is an arithmetic number, because the mean of its divisors is an integer number (6957).

2¹³⁹¹³ is an apocalyptic number.

It is an amenable number.

13913 is a deficient number, since it is larger than the sum of its proper divisors (1).

13913 is an equidigital number, since it uses as much as digits as its factorization.

13913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81, while the sum is 17.

The square root of 13913 is about 117.9533806213. The cubic root of 13913 is about 24.0513944930.

The spelling of 13913 in words is "thirteen thousand, nine hundred thirteen".