130644618 has 16 divisors (see below), whose sum is σ = 281388576. Its totient is φ = 40198320.

The previous prime is 130644617. The next prime is 130644649. The reversal of 130644618 is 816446031.

It is a super-3 number, since 3×130644618³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (130644617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 837388 + ... + 837543.

It is an arithmetic number, because the mean of its divisors is an integer number (17586786).

Almost surely, 2^130644618 is an apocalyptic number.

130644618 is an abundant number, since it is smaller than the sum of its proper divisors (150743958).

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

130644618 is a wasteful number, since it uses less digits than its factorization.

130644618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674949.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 130644618 is about 11429.9876640353. The cubic root of 130644618 is about 507.4156304537.

The spelling of 130644618 in words is "one hundred thirty million, six hundred forty-four thousand, six hundred eighteen".