130505727 has 8 divisors (see below), whose sum is σ = 189826560. Its totient is φ = 79094360.

The previous prime is 130505717. The next prime is 130505729. The reversal of 130505727 is 727505031.

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-130505727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130505694 and 130505703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130505729) 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, 1977327 + ... + 1977392.

It is an arithmetic number, because the mean of its divisors is an integer number (23728320).

Almost surely, 2^130505727 is an apocalyptic number.

130505727 is a deficient number, since it is larger than the sum of its proper divisors (59320833).

130505727 is a wasteful number, since it uses less digits than its factorization.

130505727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954733.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 130505727 is about 11423.9103200262. The cubic root of 130505727 is about 507.2357520048.

The spelling of 130505727 in words is "one hundred thirty million, five hundred five thousand, seven hundred twenty-seven".