1630432319 has 2 divisors, whose sum is σ = 1630432320. Its totient is φ = 1630432318.

The previous prime is 1630432301. The next prime is 1630432393. The reversal of 1630432319 is 9132340361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1630432319 - 2¹² = 1630428223 is a prime.

It is a super-2 number, since 2×1630432319² = 5316619093679435522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1630432399) 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, 815216159 + 815216160.

It is an arithmetic number, because the mean of its divisors is an integer number (815216160).

Almost surely, 2^1630432319 is an apocalyptic number.

1630432319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630432319 is an equidigital number, since it uses as much as digits as its factorization.

1630432319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 1630432319 is about 40378.6121480172. The cubic root of 1630432319 is about 1176.9759585290.

The spelling of 1630432319 in words is "one billion, six hundred thirty million, four hundred thirty-two thousand, three hundred nineteen".