517535149 has 2 divisors, whose sum is σ = 517535150. Its totient is φ = 517535148.

The previous prime is 517535147. The next prime is 517535219. The reversal of 517535149 is 941535715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 467337924 + 50197225 = 21618^2 + 7085^2 .

It is a cyclic number.

It is not a de Polignac number, because 517535149 - 2¹ = 517535147 is a prime.

Together with 517535147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (517535147) 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, 258767574 + 258767575.

It is an arithmetic number, because the mean of its divisors is an integer number (258767575).

Almost surely, 2^517535149 is an apocalyptic number.

It is an amenable number.

517535149 is a deficient number, since it is larger than the sum of its proper divisors (1).

517535149 is an equidigital number, since it uses as much as digits as its factorization.

517535149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94500, while the sum is 40.

The square root of 517535149 is about 22749.3988711790. The cubic root of 517535149 is about 802.8725632343.

The spelling of 517535149 in words is "five hundred seventeen million, five hundred thirty-five thousand, one hundred forty-nine".