538006229 has 2 divisors, whose sum is σ = 538006230. Its totient is φ = 538006228.

The previous prime is 538006211. The next prime is 538006243. The reversal of 538006229 is 922600835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 495730225 + 42276004 = 22265^2 + 6502^2 .

It is a cyclic number.

It is not a de Polignac number, because 538006229 - 2⁸ = 538005973 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_28249208 and since 538006229 and 28249208 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538006129) 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, 269003114 + 269003115.

It is an arithmetic number, because the mean of its divisors is an integer number (269003115).

Almost surely, 2^538006229 is an apocalyptic number.

It is an amenable number.

538006229 is a deficient number, since it is larger than the sum of its proper divisors (1).

538006229 is an equidigital number, since it uses as much as digits as its factorization.

538006229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 538006229 is about 23194.9612847273. The cubic root of 538006229 is about 813.3218402740.

The spelling of 538006229 in words is "five hundred thirty-eight million, six thousand, two hundred twenty-nine".