13771117 has 4 divisors (see below), whose sum is σ = 13792860. Its totient is φ = 13749376.

The previous prime is 13771091. The next prime is 13771127. The reversal of 13771117 is 71117731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71117731 = 743 ⋅95717.

It can be written as a sum of positive squares in 2 ways, for example, as 9523396 + 4247721 = 3086^2 + 2061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13771117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13771127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9892 + ... + 11197.

It is an arithmetic number, because the mean of its divisors is an integer number (3448215).

Almost surely, 2^13771117 is an apocalyptic number.

It is an amenable number.

13771117 is a deficient number, since it is larger than the sum of its proper divisors (21743).

13771117 is an equidigital number, since it uses as much as digits as its factorization.

13771117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21742.

The product of its digits is 1029, while the sum is 28.

The square root of 13771117 is about 3710.9455668333. The cubic root of 13771117 is about 239.6935730474.

Adding to 13771117 its reverse (71117731), we get a palindrome (84888848).

The spelling of 13771117 in words is "thirteen million, seven hundred seventy-one thousand, one hundred seventeen".