13681177 has 4 divisors (see below), whose sum is σ = 13689216. Its totient is φ = 13673140.

The previous prime is 13681163. The next prime is 13681211. The reversal of 13681177 is 77118631.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 77118631 = 3203 ⋅24077.

It is a cyclic number.

It is not a de Polignac number, because 13681177 - 2¹⁹ = 13156889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13681117) 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, 349 + ... + 5242.

It is an arithmetic number, because the mean of its divisors is an integer number (3422304).

Almost surely, 2^13681177 is an apocalyptic number.

It is an amenable number.

13681177 is a deficient number, since it is larger than the sum of its proper divisors (8039).

13681177 is an equidigital number, since it uses as much as digits as its factorization.

13681177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8038.

The product of its digits is 7056, while the sum is 34.

The square root of 13681177 is about 3698.8075105363. The cubic root of 13681177 is about 239.1706151474.

The spelling of 13681177 in words is "thirteen million, six hundred eighty-one thousand, one hundred seventy-seven".