538133287 has 2 divisors, whose sum is σ = 538133288. Its totient is φ = 538133286.

The previous prime is 538133269. The next prime is 538133293. The reversal of 538133287 is 782331835.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538133287 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538163287) 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, 269066643 + 269066644.

It is an arithmetic number, because the mean of its divisors is an integer number (269066644).

Almost surely, 2^538133287 is an apocalyptic number.

538133287 is a deficient number, since it is larger than the sum of its proper divisors (1).

538133287 is an equidigital number, since it uses as much as digits as its factorization.

538133287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 538133287 is about 23197.7000368571. The cubic root of 538133287 is about 813.3858611638.

The spelling of 538133287 in words is "five hundred thirty-eight million, one hundred thirty-three thousand, two hundred eighty-seven".