130605 has 8 divisors (see below), whose sum is σ = 208992. Its totient is φ = 69648.

The previous prime is 130589. The next prime is 130619. The reversal of 130605 is 506031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130605 - 2⁴ = 130589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 8707 = 130605 / (1 + 3 + 0 + 6 + 0 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4339 + ... + 4368.

It is an arithmetic number, because the mean of its divisors is an integer number (26124).

2¹³⁰⁶⁰⁵ is an apocalyptic number.

130605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130605 is a deficient number, since it is larger than the sum of its proper divisors (78387).

130605 is an equidigital number, since it uses as much as digits as its factorization.

130605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8715.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 130605 is about 361.3931377323. The cubic root of 130605 is about 50.7364333979.

Adding to 130605 its reverse (506031), we get a palindrome (636636).

The spelling of 130605 in words is "one hundred thirty thousand, six hundred five".