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13125349 is a prime number
BaseRepresentation
bin110010000100…
…011011100101
3220200211121001
4302010123211
511330002344
61145153301
7216364216
oct62043345
926624531
1013125349
1174552a6
12448b831
1329472a3
141a5940d
151243ed4
hexc846e5

13125349 has 2 divisors, whose sum is σ = 13125350. Its totient is φ = 13125348.

The previous prime is 13125347. The next prime is 13125383. The reversal of 13125349 is 94352131.

13125349 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11512449 + 1612900 = 3393^2 + 1270^2 .

It is an emirp because it is prime and its reverse (94352131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13125349 - 21 = 13125347 is a prime.

Together with 13125347, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13125347) 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, 6562674 + 6562675.

It is an arithmetic number, because the mean of its divisors is an integer number (6562675).

Almost surely, 213125349 is an apocalyptic number.

It is an amenable number.

13125349 is a deficient number, since it is larger than the sum of its proper divisors (1).

13125349 is an equidigital number, since it uses as much as digits as its factorization.

13125349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 13125349 is about 3622.8923528032. The cubic root of 13125349 is about 235.8867897595.

The spelling of 13125349 in words is "thirteen million, one hundred twenty-five thousand, three hundred forty-nine".