130438643 has 2 divisors, whose sum is σ = 130438644. Its totient is φ = 130438642.

The previous prime is 130438639. The next prime is 130438661. The reversal of 130438643 is 346834031.

It is a weak prime.

It is an emirp because it is prime and its reverse (346834031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130438643 - 2² = 130438639 is a prime.

It is not a weakly prime, because it can be changed into another prime (130438613) 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, 65219321 + 65219322.

It is an arithmetic number, because the mean of its divisors is an integer number (65219322).

Almost surely, 2^130438643 is an apocalyptic number.

130438643 is a deficient number, since it is larger than the sum of its proper divisors (1).

130438643 is an equidigital number, since it uses as much as digits as its factorization.

130438643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 130438643 is about 11420.9738201258. The cubic root of 130438643 is about 507.1488254614.

The spelling of 130438643 in words is "one hundred thirty million, four hundred thirty-eight thousand, six hundred forty-three".