13671173 has 2 divisors, whose sum is σ = 13671174. Its totient is φ = 13671172.
The previous prime is 13671143. The next prime is 13671181. The reversal of 13671173 is 37117631.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 13667809 + 3364 = 3697^2 + 58^2 .
It is an emirp because it is prime and its reverse (37117631) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13671173 - 210 = 13670149 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13671113) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6835586 + 6835587.
It is an arithmetic number, because the mean of its divisors is an integer number (6835587).
Almost surely, 213671173 is an apocalyptic number.
It is an amenable number.
13671173 is a deficient number, since it is larger than the sum of its proper divisors (1).
13671173 is an equidigital number, since it uses as much as digits as its factorization.
13671173 is an evil number, because the sum of its binary digits is even.
The product of its digits is 2646, while the sum is 29.
The square root of 13671173 is about 3697.4549354928. The cubic root of 13671173 is about 239.1123051969.
The spelling of 13671173 in words is "thirteen million, six hundred seventy-one thousand, one hundred seventy-three".
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