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130717997 is a prime number
BaseRepresentation
bin1111100101010…
…01100100101101
3100002222011101022
413302221210231
5231430433442
620545423525
73145041014
oct762514455
9302864338
10130717997
1167872403
123793aba5
132110a537
1413509a7b
15b7213d2
hex7ca992d

130717997 has 2 divisors, whose sum is σ = 130717998. Its totient is φ = 130717996.

The previous prime is 130717987. The next prime is 130718017. The reversal of 130717997 is 799717031.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76930441 + 53787556 = 8771^2 + 7334^2 .

It is an emirp because it is prime and its reverse (799717031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130717997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130717907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65358998 + 65358999.

It is an arithmetic number, because the mean of its divisors is an integer number (65358999).

Almost surely, 2130717997 is an apocalyptic number.

It is an amenable number.

130717997 is a deficient number, since it is larger than the sum of its proper divisors (1).

130717997 is an equidigital number, since it uses as much as digits as its factorization.

130717997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 83349, while the sum is 44.

The square root of 130717997 is about 11433.1971469051. The cubic root of 130717997 is about 507.5106125083.

The spelling of 130717997 in words is "one hundred thirty million, seven hundred seventeen thousand, nine hundred ninety-seven".