1630943143 has 2 divisors, whose sum is σ = 1630943144. Its totient is φ = 1630943142.

The previous prime is 1630943131. The next prime is 1630943177. The reversal of 1630943143 is 3413490361.

It is an a-pointer prime, because the next prime (1630943177) can be obtained adding 1630943143 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1630943143 - 2²⁵ = 1597388711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1630943099 and 1630943108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1630943183) 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, 815471571 + 815471572.

It is an arithmetic number, because the mean of its divisors is an integer number (815471572).

Almost surely, 2^1630943143 is an apocalyptic number.

1630943143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630943143 is an equidigital number, since it uses as much as digits as its factorization.

1630943143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 1630943143 is about 40384.9370805502. The cubic root of 1630943143 is about 1177.0988635159.

The spelling of 1630943143 in words is "one billion, six hundred thirty million, nine hundred forty-three thousand, one hundred forty-three".