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136648136231 is a prime number
BaseRepresentation
bin111111101000011011…
…1010001011000100111
3111001201020120120001122
41333100313101120213
54214323410324411
6142435243444155
712605160664505
oct1772067213047
9431636516048
10136648136231
1152a523462a2
122259722665b
13cb69321159
1468843d1675
15384b8269db
hex1fd0dd1627

136648136231 has 2 divisors, whose sum is σ = 136648136232. Its totient is φ = 136648136230.

The previous prime is 136648136179. The next prime is 136648136257. The reversal of 136648136231 is 132631846631.

It is a strong prime.

It is an emirp because it is prime and its reverse (132631846631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136648136231 - 214 = 136648119847 is a prime.

It is a super-2 number, since 2×1366481362312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136648139231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68324068115 + 68324068116.

It is an arithmetic number, because the mean of its divisors is an integer number (68324068116).

Almost surely, 2136648136231 is an apocalyptic number.

136648136231 is a deficient number, since it is larger than the sum of its proper divisors (1).

136648136231 is an equidigital number, since it uses as much as digits as its factorization.

136648136231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 44.

The spelling of 136648136231 in words is "one hundred thirty-six billion, six hundred forty-eight million, one hundred thirty-six thousand, two hundred thirty-one".