130308218 has 16 divisors (see below), whose sum is σ = 197050920. Its totient is φ = 64627200.

The previous prime is 130308187. The next prime is 130308229. The reversal of 130308218 is 812803031.

It can be written as a sum of positive squares in 4 ways, for example, as 127757809 + 2550409 = 11303^2 + 1597^2 .

It is a Curzon 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, 196808 + ... + 197468.

Almost surely, 2^130308218 is an apocalyptic number.

130308218 is a deficient number, since it is larger than the sum of its proper divisors (66742702).

130308218 is a wasteful number, since it uses less digits than its factorization.

130308218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 130308218 is about 11415.2625024570. The cubic root of 130308218 is about 506.9797371649.

The spelling of 130308218 in words is "one hundred thirty million, three hundred eight thousand, two hundred eighteen".