130576729 has 4 divisors (see below), whose sum is σ = 130610484. Its totient is φ = 130542976.

The previous prime is 130576723. The next prime is 130576777. The reversal of 130576729 is 927675031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 91489225 + 39087504 = 9565^2 + 6252^2 .

It is a cyclic number.

It is not a de Polignac number, because 130576729 - 2⁵ = 130576697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130576691 and 130576700.

It is not an unprimeable number, because it can be changed into a prime (130576723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10192 + ... + 19105.

It is an arithmetic number, because the mean of its divisors is an integer number (32652621).

Almost surely, 2^130576729 is an apocalyptic number.

It is an amenable number.

130576729 is a deficient number, since it is larger than the sum of its proper divisors (33755).

130576729 is an equidigital number, since it uses as much as digits as its factorization.

130576729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33754.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 130576729 is about 11427.0175023932. The cubic root of 130576729 is about 507.3277229968.

The spelling of 130576729 in words is "one hundred thirty million, five hundred seventy-six thousand, seven hundred twenty-nine".