130510505 has 4 divisors (see below), whose sum is σ = 156612612. Its totient is φ = 104408400.

The previous prime is 130510481. The next prime is 130510529. The reversal of 130510505 is 505015031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505015031 = 8923 ⋅56597.

It is an interprime number because it is at equal distance from previous prime (130510481) and next prime (130510529).

It can be written as a sum of positive squares in 2 ways, for example, as 81342361 + 49168144 = 9019^2 + 7012^2 .

It is not a de Polignac number, because 130510505 - 2⁸ = 130510249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 13051046 + ... + 13051055.

It is an arithmetic number, because the mean of its divisors is an integer number (39153153).

Almost surely, 2^130510505 is an apocalyptic number.

It is an amenable number.

130510505 is a deficient number, since it is larger than the sum of its proper divisors (26102107).

130510505 is an equidigital number, since it uses as much as digits as its factorization.

130510505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26102106.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 130510505 is about 11424.1194409022. The cubic root of 130510505 is about 507.2419421363.

Adding to 130510505 its reverse (505015031), we get a palindrome (635525536).

The spelling of 130510505 in words is "one hundred thirty million, five hundred ten thousand, five hundred five".