1304222137 has 2 divisors, whose sum is σ = 1304222138. Its totient is φ = 1304222136.

The previous prime is 1304222093. The next prime is 1304222159. The reversal of 1304222137 is 7312224031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 896343721 + 407878416 = 29939^2 + 20196^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304222137 - 2⁷ = 1304222009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1304222237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652111068 + 652111069.

It is an arithmetic number, because the mean of its divisors is an integer number (652111069).

Almost surely, 2^1304222137 is an apocalyptic number.

It is an amenable number.

1304222137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304222137 is an equidigital number, since it uses as much as digits as its factorization.

1304222137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 1304222137 is about 36114.0157971943. The cubic root of 1304222137 is about 1092.5731473243.

Adding to 1304222137 its reverse (7312224031), we get a palindrome (8616446168).

The spelling of 1304222137 in words is "one billion, three hundred four million, two hundred twenty-two thousand, one hundred thirty-seven".