130032605 has 4 divisors (see below), whose sum is σ = 156039132. Its totient is φ = 104026080.

The previous prime is 130032601. The next prime is 130032611. The reversal of 130032605 is 506230031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68989636 + 61042969 = 8306^2 + 7813^2 .

It is not a de Polignac number, because 130032605 - 2² = 130032601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130032601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13003256 + ... + 13003265.

It is an arithmetic number, because the mean of its divisors is an integer number (39009783).

Almost surely, 2^130032605 is an apocalyptic number.

It is an amenable number.

130032605 is a deficient number, since it is larger than the sum of its proper divisors (26006527).

130032605 is an equidigital number, since it uses as much as digits as its factorization.

130032605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26006526.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 130032605 is about 11403.1839851859. The cubic root of 130032605 is about 506.6220497319.

Adding to 130032605 its reverse (506230031), we get a palindrome (636262636).

The spelling of 130032605 in words is "one hundred thirty million, thirty-two thousand, six hundred five".