422157313 has 2 divisors, whose sum is σ = 422157314. Its totient is φ = 422157312.

The previous prime is 422157301. The next prime is 422157319. The reversal of 422157313 is 313751224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219721329 + 202435984 = 14823^2 + 14228^2 .

It is a cyclic number.

It is not a de Polignac number, because 422157313 - 2¹³ = 422149121 is a prime.

It is not a weakly prime, because it can be changed into another prime (422157319) 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, 211078656 + 211078657.

It is an arithmetic number, because the mean of its divisors is an integer number (211078657).

Almost surely, 2^422157313 is an apocalyptic number.

It is an amenable number.

422157313 is a deficient number, since it is larger than the sum of its proper divisors (1).

422157313 is an equidigital number, since it uses as much as digits as its factorization.

422157313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 422157313 is about 20546.4671659144. The cubic root of 422157313 is about 750.1672592889.

The spelling of 422157313 in words is "four hundred twenty-two million, one hundred fifty-seven thousand, three hundred thirteen".