130520242 has 8 divisors (see below), whose sum is σ = 202531500. Its totient is φ = 63009744.

The previous prime is 130520231. The next prime is 130520249. The reversal of 130520242 is 242025031.

It can be written as a sum of positive squares in 2 ways, for example, as 128391561 + 2128681 = 11331^2 + 1459^2 .

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

It is not an unprimeable number, because it can be changed into a prime (130520249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1125117 + ... + 1125232.

Almost surely, 2^130520242 is an apocalyptic number.

130520242 is a deficient number, since it is larger than the sum of its proper divisors (72011258).

130520242 is a wasteful number, since it uses less digits than its factorization.

130520242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250380.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 130520242 is about 11424.5455927140. The cubic root of 130520242 is about 507.2545564260.

Adding to 130520242 its reverse (242025031), we get a palindrome (372545273).

The spelling of 130520242 in words is "one hundred thirty million, five hundred twenty thousand, two hundred forty-two".