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530131957 is a prime number
BaseRepresentation
bin11111100110010…
…010101111110101
31100221112111022221
4133212102233311
52041203210312
6124334322341
716065022135
oct3746225765
91327474287
10530131957
11252277a93
121296593b1
1385aa5164
145059aac5
153181b207
hex1f992bf5

530131957 has 2 divisors, whose sum is σ = 530131958. Its totient is φ = 530131956.

The previous prime is 530131841. The next prime is 530131963. The reversal of 530131957 is 759131035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298909521 + 231222436 = 17289^2 + 15206^2 .

It is a cyclic number.

It is not a de Polignac number, because 530131957 - 223 = 521743349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530131997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265065978 + 265065979.

It is an arithmetic number, because the mean of its divisors is an integer number (265065979).

Almost surely, 2530131957 is an apocalyptic number.

It is an amenable number.

530131957 is a deficient number, since it is larger than the sum of its proper divisors (1).

530131957 is an equidigital number, since it uses as much as digits as its factorization.

530131957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14175, while the sum is 34.

The square root of 530131957 is about 23024.5946109807. The cubic root of 530131957 is about 809.3343904472.

The spelling of 530131957 in words is "five hundred thirty million, one hundred thirty-one thousand, nine hundred fifty-seven".