130005242 has 4 divisors (see below), whose sum is σ = 195007866. Its totient is φ = 65002620.

The previous prime is 130005233. The next prime is 130005283. The reversal of 130005242 is 242500031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242500031 = 5581 ⋅43451.

It can be written as a sum of positive squares in only one way, i.e., 127667401 + 2337841 = 11299^2 + 1529^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 130005242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32501309 + ... + 32501312.

Almost surely, 2^130005242 is an apocalyptic number.

130005242 is a deficient number, since it is larger than the sum of its proper divisors (65002624).

130005242 is an equidigital number, since it uses as much as digits as its factorization.

130005242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65002623.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 130005242 is about 11401.9841255810. The cubic root of 130005242 is about 506.5865107693.

Adding to 130005242 its reverse (242500031), we get a palindrome (372505273).

The spelling of 130005242 in words is "one hundred thirty million, five thousand, two hundred forty-two".