130199999 has 4 divisors (see below), whose sum is σ = 130998936. Its totient is φ = 129401064.

The previous prime is 130199981. The next prime is 130200017. The reversal of 130199999 is 999991031.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (130199981) and next prime (130200017).

It is a cyclic number.

It is not a de Polignac number, because 130199999 - 2¹⁶ = 130134463 is a prime.

It is a Duffinian number.

130199999 is a modest number, since divided by 99999 gives 1301 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130190999) 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 in 3 ways as a sum of consecutive naturals, for example, 399224 + ... + 399549.

It is an arithmetic number, because the mean of its divisors is an integer number (32749734).

Almost surely, 2^130199999 is an apocalyptic number.

130199999 is a deficient number, since it is larger than the sum of its proper divisors (798937).

130199999 is an equidigital number, since it uses as much as digits as its factorization.

130199999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798936.

The product of its (nonzero) digits is 177147, while the sum is 50.

The square root of 130199999 is about 11410.5214166575. The cubic root of 130199999 is about 506.8393519660.

The spelling of 130199999 in words is "one hundred thirty million, one hundred ninety-nine thousand, nine hundred ninety-nine".