130644345 has 16 divisors (see below), whose sum is σ = 225110592. Its totient is φ = 64317120.

The previous prime is 130644343. The next prime is 130644383. The reversal of 130644345 is 543446031.

It is not a de Polignac number, because 130644345 - 2¹ = 130644343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130644343) 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 15 ways as a sum of consecutive naturals, for example, 334791 + ... + 335180.

It is an arithmetic number, because the mean of its divisors is an integer number (14069412).

Almost surely, 2^130644345 is an apocalyptic number.

130644345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130644345 is a deficient number, since it is larger than the sum of its proper divisors (94466247).

130644345 is a wasteful number, since it uses less digits than its factorization.

130644345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669992.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 130644345 is about 11429.9757217590. The cubic root of 130644345 is about 507.4152770151.

The spelling of 130644345 in words is "one hundred thirty million, six hundred forty-four thousand, three hundred forty-five".