522226139 has 2 divisors, whose sum is σ = 522226140. Its totient is φ = 522226138.

The previous prime is 522226079. The next prime is 522226141. The reversal of 522226139 is 931622225.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-522226139 is a prime.

Together with 522226141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (522226189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261113069 + 261113070.

It is an arithmetic number, because the mean of its divisors is an integer number (261113070).

Almost surely, 2^522226139 is an apocalyptic number.

522226139 is a deficient number, since it is larger than the sum of its proper divisors (1).

522226139 is an equidigital number, since it uses as much as digits as its factorization.

522226139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 522226139 is about 22852.2676992897. The cubic root of 522226139 is about 805.2910429949.

The spelling of 522226139 in words is "five hundred twenty-two million, two hundred twenty-six thousand, one hundred thirty-nine".