130503005 has 4 divisors (see below), whose sum is σ = 156603612. Its totient is φ = 104402400.

The previous prime is 130502969. The next prime is 130503007. The reversal of 130503005 is 500305031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500305031 = 677 ⋅739003.

It can be written as a sum of positive squares in 2 ways, for example, as 97990201 + 32512804 = 9899^2 + 5702^2 .

It is not a de Polignac number, because 130503005 - 2¹⁰ = 130501981 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 (130503007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13050296 + ... + 13050305.

It is an arithmetic number, because the mean of its divisors is an integer number (39150903).

Almost surely, 2^130503005 is an apocalyptic number.

It is an amenable number.

130503005 is a deficient number, since it is larger than the sum of its proper divisors (26100607).

130503005 is an equidigital number, since it uses as much as digits as its factorization.

130503005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26100606.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 130503005 is about 11423.7911833156. The cubic root of 130503005 is about 507.2322254537.

Adding to 130503005 its reverse (500305031), we get a palindrome (630808036).

The spelling of 130503005 in words is "one hundred thirty million, five hundred three thousand, five".