130040605 has 4 divisors (see below), whose sum is σ = 156048732. Its totient is φ = 104032480.

The previous prime is 130040591. The next prime is 130040657. The reversal of 130040605 is 506040031.

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 51079609 + 78960996 = 7147^2 + 8886^2 .

It is not a de Polignac number, because 130040605 - 2¹⁵ = 130007837 is a prime.

It is a super-3 number, since 3×130040605³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

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, 13004056 + ... + 13004065.

It is an arithmetic number, because the mean of its divisors is an integer number (39012183).

Almost surely, 2^130040605 is an apocalyptic number.

It is an amenable number.

130040605 is a deficient number, since it is larger than the sum of its proper divisors (26008127).

130040605 is an equidigital number, since it uses as much as digits as its factorization.

130040605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26008126.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 130040605 is about 11403.5347590122. The cubic root of 130040605 is about 506.6324391602.

Adding to 130040605 its reverse (506040031), we get a palindrome (636080636).

It can be divided in two parts, 1300 and 40605, that added together give a triangular number (41905 = T₂₈₉).

The spelling of 130040605 in words is "one hundred thirty million, forty thousand, six hundred five".