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127394317 is a prime number
BaseRepresentation
bin1111001011111…
…10001000001101
322212201022011001
413211332020031
5230103104232
620350300301
73104556001
oct745761015
9285638131
10127394317
1165a02266
12367b7691
132051576b
1412cc2701
15b2b66e7
hex797e20d

127394317 has 2 divisors, whose sum is σ = 127394318. Its totient is φ = 127394316.

The previous prime is 127394249. The next prime is 127394359. The reversal of 127394317 is 713493721.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126023076 + 1371241 = 11226^2 + 1171^2 .

It is an emirp because it is prime and its reverse (713493721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-127394317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127391317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63697158 + 63697159.

It is an arithmetic number, because the mean of its divisors is an integer number (63697159).

Almost surely, 2127394317 is an apocalyptic number.

127394317 is the 6517-th hex number.

It is an amenable number.

127394317 is a deficient number, since it is larger than the sum of its proper divisors (1).

127394317 is an equidigital number, since it uses as much as digits as its factorization.

127394317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 37.

The square root of 127394317 is about 11286.9090985974. The cubic root of 127394317 is about 503.1722537154.

The spelling of 127394317 in words is "one hundred twenty-seven million, three hundred ninety-four thousand, three hundred seventeen".