130577681 has 6 divisors (see below), whose sum is σ = 141394950. Its totient is φ = 120533088.

The previous prime is 130577677. The next prime is 130577683. The reversal of 130577681 is 186775031.

It can be written as a sum of positive squares in 3 ways, for example, as 10784656 + 119793025 = 3284^2 + 10945^2 .

It is not a de Polignac number, because 130577681 - 2² = 130577677 is a prime.

It is a super-2 number, since 2×130577681² = 34101061550675522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130577683) 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 5 ways as a sum of consecutive naturals, for example, 386156 + ... + 386493.

It is an arithmetic number, because the mean of its divisors is an integer number (23565825).

Almost surely, 2^130577681 is an apocalyptic number.

It is an amenable number.

130577681 is a deficient number, since it is larger than the sum of its proper divisors (10817269).

130577681 is an equidigital number, since it uses as much as digits as its factorization.

130577681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772675 (or 772662 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 130577681 is about 11427.0591579811. The cubic root of 130577681 is about 507.3289559240.

The spelling of 130577681 in words is "one hundred thirty million, five hundred seventy-seven thousand, six hundred eighty-one".