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130643101 is a prime number
BaseRepresentation
bin1111100100101…
…11010010011101
3100002211100122101
413302113102131
5231421034401
620544045101
73144306451
oct762272235
9302740571
10130643101
1167821106
1237903791
13210b2414
14134ca661
15b709101
hex7c9749d

130643101 has 2 divisors, whose sum is σ = 130643102. Its totient is φ = 130643100.

The previous prime is 130643081. The next prime is 130643129. The reversal of 130643101 is 101346031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112572100 + 18071001 = 10610^2 + 4251^2 .

It is an emirp because it is prime and its reverse (101346031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130643101 - 27 = 130642973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130643131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65321550 + 65321551.

It is an arithmetic number, because the mean of its divisors is an integer number (65321551).

Almost surely, 2130643101 is an apocalyptic number.

It is an amenable number.

130643101 is a deficient number, since it is larger than the sum of its proper divisors (1).

130643101 is an equidigital number, since it uses as much as digits as its factorization.

130643101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 130643101 is about 11429.9213033161. The cubic root of 130643101 is about 507.4136664680.

Adding to 130643101 its reverse (101346031), we get a palindrome (231989132).

The spelling of 130643101 in words is "one hundred thirty million, six hundred forty-three thousand, one hundred one".