130440712525 has 12 divisors (see below), whose sum is σ = 161798405524. Its totient is φ = 104319072000.

The previous prime is 130440712517. The next prime is 130440712579. The reversal of 130440712525 is 525217044031.

It can be written as a sum of positive squares in 6 ways, for example, as 42068881449 + 88371831076 = 205107^2 + 297274^2 .

It is not a de Polignac number, because 130440712525 - 2³ = 130440712517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 757866 + ... + 913915.

Almost surely, 2^130440712525 is an apocalyptic number.

It is an amenable number.

130440712525 is a deficient number, since it is larger than the sum of its proper divisors (31357692999).

130440712525 is a wasteful number, since it uses less digits than its factorization.

130440712525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674912 (or 1674907 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

Adding to 130440712525 its reverse (525217044031), we get a palindrome (655657756556).

The spelling of 130440712525 in words is "one hundred thirty billion, four hundred forty million, seven hundred twelve thousand, five hundred twenty-five".