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130712249 is a prime number
BaseRepresentation
bin1111100101010…
…00001010111001
3100002221212111102
413302220022321
5231430242444
620545341145
73145015163
oct762501271
9302855442
10130712249
1167869058
12379377b5
1321107a35
1413507933
15b71e84e
hex7ca82b9

130712249 has 2 divisors, whose sum is σ = 130712250. Its totient is φ = 130712248.

The previous prime is 130712237. The next prime is 130712279. The reversal of 130712249 is 942217031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87086224 + 43626025 = 9332^2 + 6605^2 .

It is a cyclic number.

It is not a de Polignac number, because 130712249 - 28 = 130711993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130712209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65356124 + 65356125.

It is an arithmetic number, because the mean of its divisors is an integer number (65356125).

Almost surely, 2130712249 is an apocalyptic number.

It is an amenable number.

130712249 is a deficient number, since it is larger than the sum of its proper divisors (1).

130712249 is an equidigital number, since it uses as much as digits as its factorization.

130712249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 130712249 is about 11432.9457708851. The cubic root of 130712249 is about 507.5031735587.

The spelling of 130712249 in words is "one hundred thirty million, seven hundred twelve thousand, two hundred forty-nine".