422145613 has 2 divisors, whose sum is σ = 422145614. Its totient is φ = 422145612.

The previous prime is 422145593. The next prime is 422145637. The reversal of 422145613 is 316541224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219424969 + 202720644 = 14813^2 + 14238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422145613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422145313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211072806 + 211072807.

It is an arithmetic number, because the mean of its divisors is an integer number (211072807).

Almost surely, 2^422145613 is an apocalyptic number.

It is an amenable number.

422145613 is a deficient number, since it is larger than the sum of its proper divisors (1).

422145613 is an equidigital number, since it uses as much as digits as its factorization.

422145613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 422145613 is about 20546.1824434614. The cubic root of 422145613 is about 750.1603289830.

Adding to 422145613 its reverse (316541224), we get a palindrome (738686837).

The spelling of 422145613 in words is "four hundred twenty-two million, one hundred forty-five thousand, six hundred thirteen".