130511505 has 8 divisors (see below), whose sum is σ = 208818432. Its totient is φ = 69606128.

The previous prime is 130511503. The next prime is 130511587. The reversal of 130511505 is 505115031.

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 130511505 - 2¹ = 130511503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130511503) 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, 4350369 + ... + 4350398.

It is an arithmetic number, because the mean of its divisors is an integer number (26102304).

Almost surely, 2^130511505 is an apocalyptic number.

130511505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130511505 is a deficient number, since it is larger than the sum of its proper divisors (78306927).

130511505 is an equidigital number, since it uses as much as digits as its factorization.

130511505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8700775.

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 130511505 is about 11424.1632078678. The cubic root of 130511505 is about 507.2432376659.

Adding to 130511505 its reverse (505115031), we get a palindrome (635626536).

The spelling of 130511505 in words is "one hundred thirty million, five hundred eleven thousand, five hundred five".