130231504 has 20 divisors (see below), whose sum is σ = 271733476. Its totient is φ = 60106752.

The previous prime is 130231499. The next prime is 130231531. The reversal of 130231504 is 405132031.

It can be written as a sum of positive squares in 2 ways, for example, as 42771600 + 87459904 = 6540^2 + 9352^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312849 + ... + 313264.

Almost surely, 2^130231504 is an apocalyptic number.

It is an amenable number.

130231504 is an abundant number, since it is smaller than the sum of its proper divisors (141501972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130231504 is a wasteful number, since it uses less digits than its factorization.

130231504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626134 (or 626128 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 130231504 is about 11411.9018572716. The cubic root of 130231504 is about 506.8802292986.

Adding to 130231504 its reverse (405132031), we get a palindrome (535363535).

The spelling of 130231504 in words is "one hundred thirty million, two hundred thirty-one thousand, five hundred four".