538456129 has 2 divisors, whose sum is σ = 538456130. Its totient is φ = 538456128.

The previous prime is 538456123. The next prime is 538456159. The reversal of 538456129 is 921654835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 455737104 + 82719025 = 21348^2 + 9095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538456129 is a prime.

It is not a weakly prime, because it can be changed into another prime (538456123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269228064 + 269228065.

It is an arithmetic number, because the mean of its divisors is an integer number (269228065).

Almost surely, 2^538456129 is an apocalyptic number.

It is an amenable number.

538456129 is a deficient number, since it is larger than the sum of its proper divisors (1).

538456129 is an equidigital number, since it uses as much as digits as its factorization.

538456129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 43.

The square root of 538456129 is about 23204.6574850826. The cubic root of 538456129 is about 813.5484866875.

The spelling of 538456129 in words is "five hundred thirty-eight million, four hundred fifty-six thousand, one hundred twenty-nine".