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1210317061 is a prime number
BaseRepresentation
bin100100000100011…
…1111100100000101
310010100102110212211
41020020333210011
54434320121221
6320033143421
741664345112
oct11010774405
93110373784
101210317061
11571213138
122993bab71
13163997455
14b6a57909
15713c76e1
hex4823f905

1210317061 has 2 divisors, whose sum is σ = 1210317062. Its totient is φ = 1210317060.

The previous prime is 1210317041. The next prime is 1210317079. The reversal of 1210317061 is 1607130121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 689062500 + 521254561 = 26250^2 + 22831^2 .

It is an emirp because it is prime and its reverse (1607130121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1210317061 - 25 = 1210317029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210317041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605158530 + 605158531.

It is an arithmetic number, because the mean of its divisors is an integer number (605158531).

Almost surely, 21210317061 is an apocalyptic number.

It is an amenable number.

1210317061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210317061 is an equidigital number, since it uses as much as digits as its factorization.

1210317061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 1210317061 is about 34789.6113947828. The cubic root of 1210317061 is about 1065.6953032693.

Adding to 1210317061 its reverse (1607130121), we get a palindrome (2817447182).

The spelling of 1210317061 in words is "one billion, two hundred ten million, three hundred seventeen thousand, sixty-one".