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520434137 is a prime number
BaseRepresentation
bin11111000001010…
…011000111011001
31100021021210102102
4133001103013121
52031212343022
6123350413145
715616421456
oct3701230731
91307253372
10520434137
11247853963
121263611b5
1383a8acc2
144d19482d
1530a52a92
hex1f0531d9

520434137 has 2 divisors, whose sum is σ = 520434138. Its totient is φ = 520434136.

The previous prime is 520434121. The next prime is 520434139. The reversal of 520434137 is 731434025.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 520341721 + 92416 = 22811^2 + 304^2 .

It is a cyclic number.

It is not a de Polignac number, because 520434137 - 24 = 520434121 is a prime.

Together with 520434139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (520434139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260217068 + 260217069.

It is an arithmetic number, because the mean of its divisors is an integer number (260217069).

Almost surely, 2520434137 is an apocalyptic number.

It is an amenable number.

520434137 is a deficient number, since it is larger than the sum of its proper divisors (1).

520434137 is an equidigital number, since it uses as much as digits as its factorization.

520434137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 520434137 is about 22813.0255994246. The cubic root of 520434137 is about 804.3688773935.

The spelling of 520434137 in words is "five hundred twenty million, four hundred thirty-four thousand, one hundred thirty-seven".