538942291 has 2 divisors, whose sum is σ = 538942292. Its totient is φ = 538942290.

The previous prime is 538942267. The next prime is 538942297. The reversal of 538942291 is 192249835.

538942291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 538942291 - 2⁹ = 538941779 is a prime.

It is not a weakly prime, because it can be changed into another prime (538942297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269471145 + 269471146.

It is an arithmetic number, because the mean of its divisors is an integer number (269471146).

Almost surely, 2^538942291 is an apocalyptic number.

538942291 is a deficient number, since it is larger than the sum of its proper divisors (1).

538942291 is an equidigital number, since it uses as much as digits as its factorization.

538942291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The square root of 538942291 is about 23215.1306479201. The cubic root of 538942291 is about 813.7932589558.

The spelling of 538942291 in words is "five hundred thirty-eight million, nine hundred forty-two thousand, two hundred ninety-one".