130556687 has 4 divisors (see below), whose sum is σ = 130637136. Its totient is φ = 130476240.

The previous prime is 130556677. The next prime is 130556707. The reversal of 130556687 is 786655031.

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

It is a cyclic number.

It is not a de Polignac number, because 130556687 - 2⁶ = 130556623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130556677) 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 3 ways as a sum of consecutive naturals, for example, 37739 + ... + 41052.

It is an arithmetic number, because the mean of its divisors is an integer number (32659284).

Almost surely, 2^130556687 is an apocalyptic number.

130556687 is a deficient number, since it is larger than the sum of its proper divisors (80449).

130556687 is an equidigital number, since it uses as much as digits as its factorization.

130556687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80448.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 130556687 is about 11426.1405120014. The cubic root of 130556687 is about 507.3017653790.

The spelling of 130556687 in words is "one hundred thirty million, five hundred fifty-six thousand, six hundred eighty-seven".