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12730169 is a prime number
BaseRepresentation
bin110000100011…
…111100111001
3212221202111202
4300203330321
511224331134
61132503545
7213130124
oct60437471
925852452
1012730169
117205401
12431abb5
13283945a
1419953bb
1511b6d7e
hexc23f39

12730169 has 2 divisors, whose sum is σ = 12730170. Its totient is φ = 12730168.

The previous prime is 12730153. The next prime is 12730283. The reversal of 12730169 is 96103721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11648569 + 1081600 = 3413^2 + 1040^2 .

It is a cyclic number.

It is not a de Polignac number, because 12730169 - 24 = 12730153 is a prime.

It is a super-2 number, since 2×127301692 = 324114405537122, which contains 22 as substring.

It is equal to p832790 and since 12730169 and 832790 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12736169) 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, 6365084 + 6365085.

It is an arithmetic number, because the mean of its divisors is an integer number (6365085).

Almost surely, 212730169 is an apocalyptic number.

It is an amenable number.

12730169 is a deficient number, since it is larger than the sum of its proper divisors (1).

12730169 is an equidigital number, since it uses as much as digits as its factorization.

12730169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 12730169 is about 3567.9362382195. The cubic root of 12730169 is about 233.4952533704.

The spelling of 12730169 in words is "twelve million, seven hundred thirty thousand, one hundred sixty-nine".