130511504 has 10 divisors (see below), whose sum is σ = 252866070. Its totient is φ = 65255744.

The previous prime is 130511503. The next prime is 130511587. The reversal of 130511504 is 405115031.

It can be written as a sum of positive squares in only one way, i.e., 125440000 + 5071504 = 11200^2 + 2252^2 .

It is a super-4 number, since 4×130511504⁴ (a number of 34 digits) contains 4444 as substring.

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 as a sum of consecutive naturals, namely, 4078469 + ... + 4078500.

It is an arithmetic number, because the mean of its divisors is an integer number (25286607).

Almost surely, 2^130511504 is an apocalyptic number.

It is an amenable number.

130511504 is a deficient number, since it is larger than the sum of its proper divisors (122354566).

130511504 is an equidigital number, since it uses as much as digits as its factorization.

130511504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8156977 (or 8156971 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 130511504 is about 11424.1631641009. The cubic root of 130511504 is about 507.2432363703.

Adding to 130511504 its reverse (405115031), we get a palindrome (535626535).

The spelling of 130511504 in words is "one hundred thirty million, five hundred eleven thousand, five hundred four".