130394881 has 8 divisors (see below), whose sum is σ = 133712424. Its totient is φ = 127115520.

The previous prime is 130394867. The next prime is 130394921. The reversal of 130394881 is 188493031.

It can be written as a sum of positive squares in 4 ways, for example, as 640000 + 129754881 = 800^2 + 11391^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130394881 is a prime.

It is a super-2 number, since 2×130394881² = 34005649982008322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130394881.

It is not an unprimeable number, because it can be changed into a prime (130394851) by changing a digit.

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, 2566 + ... + 16351.

It is an arithmetic number, because the mean of its divisors is an integer number (16714053).

Almost surely, 2^130394881 is an apocalyptic number.

It is an amenable number.

130394881 is a deficient number, since it is larger than the sum of its proper divisors (3317543).

130394881 is a wasteful number, since it uses less digits than its factorization.

130394881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19091.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 130394881 is about 11419.0577982599. The cubic root of 130394881 is about 507.0921031873.

The spelling of 130394881 in words is "one hundred thirty million, three hundred ninety-four thousand, eight hundred eighty-one".