130440512 has 14 divisors (see below), whose sum is σ = 258843018. Its totient is φ = 65220224.

The previous prime is 130440511. The next prime is 130440523. The reversal of 130440512 is 215044031.

It can be written as a sum of positive squares in only one way, i.e., 115261696 + 15178816 = 10736^2 + 3896^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130440511) by changing a digit.

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 as a sum of consecutive naturals, namely, 1019003 + ... + 1019130.

It is an arithmetic number, because the mean of its divisors is an integer number (18488787).

Almost surely, 2^130440512 is an apocalyptic number.

It is an amenable number.

130440512 is a deficient number, since it is larger than the sum of its proper divisors (128402506).

130440512 is an equidigital number, since it uses as much as digits as its factorization.

130440512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038145 (or 2038135 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 130440512 is about 11421.0556429780. The cubic root of 130440512 is about 507.1512476899.

Adding to 130440512 its reverse (215044031), we get a palindrome (345484543).

The spelling of 130440512 in words is "one hundred thirty million, four hundred forty thousand, five hundred twelve".