1630326329 has 2 divisors, whose sum is σ = 1630326330. Its totient is φ = 1630326328.

The previous prime is 1630326323. The next prime is 1630326359. The reversal of 1630326329 is 9236230361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1596162304 + 34164025 = 39952^2 + 5845^2 .

It is a cyclic number.

It is not a de Polignac number, because 1630326329 - 2²⁰ = 1629277753 is a prime.

It is not a weakly prime, because it can be changed into another prime (1630326323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815163164 + 815163165.

It is an arithmetic number, because the mean of its divisors is an integer number (815163165).

Almost surely, 2^1630326329 is an apocalyptic number.

It is an amenable number.

1630326329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630326329 is an equidigital number, since it uses as much as digits as its factorization.

1630326329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 1630326329 is about 40377.2996744458. The cubic root of 1630326329 is about 1176.9504539673.

The spelling of 1630326329 in words is "one billion, six hundred thirty million, three hundred twenty-six thousand, three hundred twenty-nine".