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130126757 is a prime number
BaseRepresentation
bin1111100000110…
…01001110100101
3100001212010100112
413300121032211
5231303024012
620525022405
73140026205
oct760311645
9301763315
10130126757
11674a9182
12376b4a05
1320c613a7
14133d4405
15b656122
hex7c193a5

130126757 has 2 divisors, whose sum is σ = 130126758. Its totient is φ = 130126756.

The previous prime is 130126727. The next prime is 130126769. The reversal of 130126757 is 757621031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116942596 + 13184161 = 10814^2 + 3631^2 .

It is a cyclic number.

It is not a de Polignac number, because 130126757 - 26 = 130126693 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 (130126727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65063378 + 65063379.

It is an arithmetic number, because the mean of its divisors is an integer number (65063379).

Almost surely, 2130126757 is an apocalyptic number.

It is an amenable number.

130126757 is a deficient number, since it is larger than the sum of its proper divisors (1).

130126757 is an equidigital number, since it uses as much as digits as its factorization.

130126757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 130126757 is about 11407.3115588205. The cubic root of 130126757 is about 506.7442959212.

Adding to 130126757 its reverse (757621031), we get a palindrome (887747788).

The spelling of 130126757 in words is "one hundred thirty million, one hundred twenty-six thousand, seven hundred fifty-seven".