130505745 has 8 divisors (see below), whose sum is σ = 208809216. Its totient is φ = 69603056.

The previous prime is 130505743. The next prime is 130505801. The reversal of 130505745 is 547505031.

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 130505745 - 2¹ = 130505743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130505743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4350177 + ... + 4350206.

It is an arithmetic number, because the mean of its divisors is an integer number (26101152).

Almost surely, 2^130505745 is an apocalyptic number.

130505745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130505745 is a deficient number, since it is larger than the sum of its proper divisors (78303471).

130505745 is an equidigital number, since it uses as much as digits as its factorization.

130505745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8700391.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 130505745 is about 11423.9111078474. The cubic root of 130505745 is about 507.2357753249.

The spelling of 130505745 in words is "one hundred thirty million, five hundred five thousand, seven hundred forty-five".