130018913 has 8 divisors (see below), whose sum is σ = 135017736. Its totient is φ = 125107200.

The previous prime is 130018909. The next prime is 130018939. The reversal of 130018913 is 319810031.

It can be written as a sum of positive squares in 4 ways, for example, as 446224 + 129572689 = 668^2 + 11383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130018913 - 2² = 130018909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130012913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18728 + ... + 24713.

It is an arithmetic number, because the mean of its divisors is an integer number (16877217).

Almost surely, 2^130018913 is an apocalyptic number.

It is an amenable number.

130018913 is a deficient number, since it is larger than the sum of its proper divisors (4998823).

130018913 is an equidigital number, since it uses as much as digits as its factorization.

130018913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43555.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 130018913 is about 11402.5836107437. The cubic root of 130018913 is about 506.6042672365.

Adding to 130018913 its reverse (319810031), we get a palindrome (449828944).

The spelling of 130018913 in words is "one hundred thirty million, eighteen thousand, nine hundred thirteen".