130561687 has 8 divisors (see below), whose sum is σ = 132602400. Its totient is φ = 128526720.

The previous prime is 130561681. The next prime is 130561693. The reversal of 130561687 is 786165031.

It is an interprime number because it is at equal distance from previous prime (130561681) and next prime (130561693).

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-130561687 is a prime.

It is a super-2 number, since 2×130561687² = 34092708224571938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130561681) 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, 73603 + ... + 75355.

It is an arithmetic number, because the mean of its divisors is an integer number (16575300).

Almost surely, 2^130561687 is an apocalyptic number.

130561687 is a deficient number, since it is larger than the sum of its proper divisors (2040713).

130561687 is a wasteful number, since it uses less digits than its factorization.

130561687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 130561687 is about 11426.3593064458. The cubic root of 130561687 is about 507.3082414329.

The spelling of 130561687 in words is "one hundred thirty million, five hundred sixty-one thousand, six hundred eighty-seven".