130505543 has 4 divisors (see below), whose sum is σ = 149149200. Its totient is φ = 111861888.

The previous prime is 130505533. The next prime is 130505561. The reversal of 130505543 is 345505031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345505031 = 89 ⋅3882079.

It is a cyclic number.

It is not a de Polignac number, because 130505543 - 2⁴ = 130505527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130505513) 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 3 ways as a sum of consecutive naturals, for example, 9321818 + ... + 9321831.

It is an arithmetic number, because the mean of its divisors is an integer number (37287300).

Almost surely, 2^130505543 is an apocalyptic number.

130505543 is a deficient number, since it is larger than the sum of its proper divisors (18643657).

130505543 is an equidigital number, since it uses as much as digits as its factorization.

130505543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18643656.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 130505543 is about 11423.9022667388. The cubic root of 130505543 is about 507.2355136208.

The spelling of 130505543 in words is "one hundred thirty million, five hundred five thousand, five hundred forty-three".