130645105 has 4 divisors (see below), whose sum is σ = 156774132. Its totient is φ = 104516080.

The previous prime is 130645079. The next prime is 130645117. The reversal of 130645105 is 501546031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501546031 = 7 ⋅71649433.

It can be written as a sum of positive squares in 2 ways, for example, as 25644096 + 105001009 = 5064^2 + 10247^2 .

It is not a de Polignac number, because 130645105 - 2⁷ = 130644977 is a prime.

It is a super-2 number, since 2×130645105² = 34136286920922050, which contains 22 as substring.

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 130645105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13064506 + ... + 13064515.

It is an arithmetic number, because the mean of its divisors is an integer number (39193533).

Almost surely, 2^130645105 is an apocalyptic number.

It is an amenable number.

130645105 is a deficient number, since it is larger than the sum of its proper divisors (26129027).

130645105 is an equidigital number, since it uses as much as digits as its factorization.

130645105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26129026.

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

The square root of 130645105 is about 11430.0089676255. The cubic root of 130645105 is about 507.4162609455.

The spelling of 130645105 in words is "one hundred thirty million, six hundred forty-five thousand, one hundred five".