1422203917 has 2 divisors, whose sum is σ = 1422203918. Its totient is φ = 1422203916.

The previous prime is 1422203869. The next prime is 1422203947. The reversal of 1422203917 is 7193022241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1192044676 + 230159241 = 34526^2 + 15171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1422203917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1422203947) by changing a digit.

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, 711101958 + 711101959.

It is an arithmetic number, because the mean of its divisors is an integer number (711101959).

Almost surely, 2^1422203917 is an apocalyptic number.

It is an amenable number.

1422203917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422203917 is an equidigital number, since it uses as much as digits as its factorization.

1422203917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1422203917 is about 37712.1189672498. The cubic root of 1422203917 is about 1124.5720622913.

The spelling of 1422203917 in words is "one billion, four hundred twenty-two million, two hundred three thousand, nine hundred seventeen".