130447645 has 8 divisors (see below), whose sum is σ = 157003704. Its totient is φ = 104047104.

The previous prime is 130447633. The next prime is 130447657. The reversal of 130447645 is 546744031.

It is an interprime number because it is at equal distance from previous prime (130447633) and next prime (130447657).

It can be written as a sum of positive squares in 4 ways, for example, as 4761124 + 125686521 = 2182^2 + 11211^2 .

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 130447645 - 2¹¹ = 130445597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130447645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37024 + ... + 40393.

It is an arithmetic number, because the mean of its divisors is an integer number (19625463).

Almost surely, 2^130447645 is an apocalyptic number.

It is an amenable number.

130447645 is a deficient number, since it is larger than the sum of its proper divisors (26556059).

130447645 is an equidigital number, since it uses as much as digits as its factorization.

130447645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77759.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 130447645 is about 11421.3679128203. The cubic root of 130447645 is about 507.1604918628.

The spelling of 130447645 in words is "one hundred thirty million, four hundred forty-seven thousand, six hundred forty-five".