130612525 has 6 divisors (see below), whose sum is σ = 161959562. Its totient is φ = 104490000.

The previous prime is 130612499. The next prime is 130612567. The reversal of 130612525 is 525216031.

It can be written as a sum of positive squares in 3 ways, for example, as 59049 + 130553476 = 243^2 + 11426^2 .

It is not a de Polignac number, because 130612525 - 2⁷ = 130612397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 5224501 = 130612525 / (1 + 3 + 0 + 6 + 1 + 2 + 5 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130612525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2612226 + ... + 2612275.

Almost surely, 2^130612525 is an apocalyptic number.

It is an amenable number.

130612525 is a deficient number, since it is larger than the sum of its proper divisors (31347037).

130612525 is an equidigital number, since it uses as much as digits as its factorization.

130612525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5224511 (or 5224506 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 130612525 is about 11428.5836830291. The cubic root of 130612525 is about 507.3740779742.

Adding to 130612525 its reverse (525216031), we get a palindrome (655828556).

It can be divided in two parts, 1306 and 12525, that added together give a palindrome (13831).

The spelling of 130612525 in words is "one hundred thirty million, six hundred twelve thousand, five hundred twenty-five".