422515207 has 2 divisors, whose sum is σ = 422515208. Its totient is φ = 422515206.

The previous prime is 422515189. The next prime is 422515243. The reversal of 422515207 is 702515224.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422515207 is a prime.

It is equal to p_22471183 and since 422515207 and 22471183 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is a weakly prime.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211257603 + 211257604.

It is an arithmetic number, because the mean of its divisors is an integer number (211257604).

Almost surely, 2^422515207 is an apocalyptic number.

422515207 is a deficient number, since it is larger than the sum of its proper divisors (1).

422515207 is an equidigital number, since it uses as much as digits as its factorization.

422515207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 422515207 is about 20555.1747012766. The cubic root of 422515207 is about 750.3791901800.

The spelling of 422515207 in words is "four hundred twenty-two million, five hundred fifteen thousand, two hundred seven".