130135240 has 32 divisors (see below), whose sum is σ = 293139000. Its totient is φ = 51994624.

The previous prime is 130135231. The next prime is 130135277. The reversal of 130135240 is 42531031.

It can be written as a sum of positive squares in 4 ways, for example, as 86601636 + 43533604 = 9306^2 + 6598^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55206 + ... + 57514.

Almost surely, 2^130135240 is an apocalyptic number.

130135240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130135240 is an abundant number, since it is smaller than the sum of its proper divisors (163003760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130135240 is a wasteful number, since it uses less digits than its factorization.

130135240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729 (or 3725 counting only the distinct ones).

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

The square root of 130135240 is about 11407.6833756903. The cubic root of 130135240 is about 506.7553072832.

Adding to 130135240 its reverse (42531031), we get a palindrome (172666271).

The spelling of 130135240 in words is "one hundred thirty million, one hundred thirty-five thousand, two hundred forty".