13731173 has 2 divisors, whose sum is σ = 13731174. Its totient is φ = 13731172.

The previous prime is 13731169. The next prime is 13731197. The reversal of 13731173 is 37113731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7491169 + 6240004 = 2737^2 + 2498^2 .

It is an emirp because it is prime and its reverse (37113731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13731173 - 2² = 13731169 is a prime.

It is a super-2 number, since 2×13731173² = 377090223911858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13731103) 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 as a sum of consecutive naturals, namely, 6865586 + 6865587.

It is an arithmetic number, because the mean of its divisors is an integer number (6865587).

Almost surely, 2^13731173 is an apocalyptic number.

It is an amenable number.

13731173 is a deficient number, since it is larger than the sum of its proper divisors (1).

13731173 is an equidigital number, since it uses as much as digits as its factorization.

13731173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1323, while the sum is 26.

The square root of 13731173 is about 3705.5597417934. The cubic root of 13731173 is about 239.4615998046.

The spelling of 13731173 in words is "thirteen million, seven hundred thirty-one thousand, one hundred seventy-three".