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1312907 is a prime number
BaseRepresentation
bin101000000100010001011
32110200222012
411000202023
5314003112
644050135
714105501
oct5004213
92420865
101312907
11817452
1253394b
1336c78b
14262671
151ae022
hex14088b

1312907 has 2 divisors, whose sum is σ = 1312908. Its totient is φ = 1312906.

The previous prime is 1312891. The next prime is 1312921. The reversal of 1312907 is 7092131.

It is a strong prime.

It is an emirp because it is prime and its reverse (7092131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312907 - 24 = 1312891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1312937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656453 + 656454.

It is an arithmetic number, because the mean of its divisors is an integer number (656454).

21312907 is an apocalyptic number.

1312907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312907 is an equidigital number, since it uses as much as digits as its factorization.

1312907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 1312907 is about 1145.8215393332. The cubic root of 1312907 is about 109.4992945612.

The spelling of 1312907 in words is "one million, three hundred twelve thousand, nine hundred seven".