130493999 has 2 divisors, whose sum is σ = 130494000. Its totient is φ = 130493998.

The previous prime is 130493981. The next prime is 130494053. The reversal of 130493999 is 999394031.

It is a weak prime.

It is an emirp because it is prime and its reverse (999394031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130493999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130493929) 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, 65246999 + 65247000.

It is an arithmetic number, because the mean of its divisors is an integer number (65247000).

Almost surely, 2^130493999 is an apocalyptic number.

130493999 is a deficient number, since it is larger than the sum of its proper divisors (1).

130493999 is an equidigital number, since it uses as much as digits as its factorization.

130493999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 236196, while the sum is 47.

The square root of 130493999 is about 11423.3969991417. The cubic root of 130493999 is about 507.2205571694.

The spelling of 130493999 in words is "one hundred thirty million, four hundred ninety-three thousand, nine hundred ninety-nine".