538126817 has 2 divisors, whose sum is σ = 538126818. Its totient is φ = 538126816.

The previous prime is 538126807. The next prime is 538126859. The reversal of 538126817 is 718621835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377952481 + 160174336 = 19441^2 + 12656^2 .

It is a cyclic number.

It is not a de Polignac number, because 538126817 - 2⁴ = 538126801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (538126807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269063408 + 269063409.

It is an arithmetic number, because the mean of its divisors is an integer number (269063409).

Almost surely, 2^538126817 is an apocalyptic number.

It is an amenable number.

538126817 is a deficient number, since it is larger than the sum of its proper divisors (1).

538126817 is an equidigital number, since it uses as much as digits as its factorization.

538126817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 41.

The square root of 538126817 is about 23197.5605829579. The cubic root of 538126817 is about 813.3826013595.

The spelling of 538126817 in words is "five hundred thirty-eight million, one hundred twenty-six thousand, eight hundred seventeen".