13705117 has 2 divisors, whose sum is σ = 13705118. Its totient is φ = 13705116.

The previous prime is 13705103. The next prime is 13705147. The reversal of 13705117 is 71150731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11978521 + 1726596 = 3461^2 + 1314^2 .

It is a cyclic number.

It is not a de Polignac number, because 13705117 - 2⁷ = 13704989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13705091 and 13705100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13705147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6852558 + 6852559.

It is an arithmetic number, because the mean of its divisors is an integer number (6852559).

Almost surely, 2^13705117 is an apocalyptic number.

It is an amenable number.

13705117 is a deficient number, since it is larger than the sum of its proper divisors (1).

13705117 is an equidigital number, since it uses as much as digits as its factorization.

13705117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 735, while the sum is 25.

The square root of 13705117 is about 3702.0422742049. The cubic root of 13705117 is about 239.3100380455.

Adding to 13705117 its reverse (71150731), we get a palindrome (84855848).

The spelling of 13705117 in words is "thirteen million, seven hundred five thousand, one hundred seventeen".