130320445 has 8 divisors (see below), whose sum is σ = 156980736. Its totient is φ = 103858896.

The previous prime is 130320431. The next prime is 130320451. The reversal of 130320445 is 544023031.

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 130320445 - 2¹⁷ = 130189373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48237 + ... + 50866.

It is an arithmetic number, because the mean of its divisors is an integer number (19622592).

Almost surely, 2^130320445 is an apocalyptic number.

It is an amenable number.

130320445 is a deficient number, since it is larger than the sum of its proper divisors (26660291).

130320445 is an equidigital number, since it uses as much as digits as its factorization.

130320445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99371.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 130320445 is about 11415.7980448149. The cubic root of 130320445 is about 506.9955935385.

Adding to 130320445 its reverse (544023031), we get a palindrome (674343476).

The spelling of 130320445 in words is "one hundred thirty million, three hundred twenty thousand, four hundred forty-five".