522198139 has 2 divisors, whose sum is σ = 522198140. Its totient is φ = 522198138.

The previous prime is 522198121. The next prime is 522198143. The reversal of 522198139 is 931891225.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 522198139 - 2¹⁷ = 522067067 is a prime.

It is not a weakly prime, because it can be changed into another prime (522196139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261099069 + 261099070.

It is an arithmetic number, because the mean of its divisors is an integer number (261099070).

Almost surely, 2^522198139 is an apocalyptic number.

522198139 is a deficient number, since it is larger than the sum of its proper divisors (1).

522198139 is an equidigital number, since it uses as much as digits as its factorization.

522198139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 40.

The square root of 522198139 is about 22851.6550604108. The cubic root of 522198139 is about 805.2766504099.

The spelling of 522198139 in words is "five hundred twenty-two million, one hundred ninety-eight thousand, one hundred thirty-nine".