1630517429 has 2 divisors, whose sum is σ = 1630517430. Its totient is φ = 1630517428.

The previous prime is 1630517411. The next prime is 1630517477. The reversal of 1630517429 is 9247150361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1015378225 + 615139204 = 31865^2 + 24802^2 .

It is a cyclic number.

It is not a de Polignac number, because 1630517429 - 2²⁴ = 1613740213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1630517392 and 1630517401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1630514429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815258714 + 815258715.

It is an arithmetic number, because the mean of its divisors is an integer number (815258715).

Almost surely, 2^1630517429 is an apocalyptic number.

It is an amenable number.

1630517429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630517429 is an equidigital number, since it uses as much as digits as its factorization.

1630517429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 1630517429 is about 40379.6660337849. Note that the first 3 decimals coincide. The cubic root of 1630517429 is about 1176.9964378992.

The spelling of 1630517429 in words is "one billion, six hundred thirty million, five hundred seventeen thousand, four hundred twenty-nine".