130204618 has 4 divisors (see below), whose sum is σ = 195306930. Its totient is φ = 65102308.

The previous prime is 130204609. The next prime is 130204631. The reversal of 130204618 is 816402031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 74597769 + 55606849 = 8637^2 + 7457^2 .

It is a junction number, because it is equal to n+sod(n) for n = 130204592 and 130204601.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32551153 + ... + 32551156.

Almost surely, 2^130204618 is an apocalyptic number.

130204618 is a deficient number, since it is larger than the sum of its proper divisors (65102312).

130204618 is an equidigital number, since it uses as much as digits as its factorization.

130204618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65102311.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 130204618 is about 11410.7238157796. The cubic root of 130204618 is about 506.8453454716.

Adding to 130204618 its reverse (816402031), we get a palindrome (946606649).

The spelling of 130204618 in words is "one hundred thirty million, two hundred four thousand, six hundred eighteen".