130087505 has 8 divisors (see below), whose sum is σ = 156171624. Its totient is φ = 104025600.

The previous prime is 130087481. The next prime is 130087511. The reversal of 130087505 is 505780031.

It can be written as a sum of positive squares in 4 ways, for example, as 11015761 + 119071744 = 3319^2 + 10912^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-130087505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12935 + ... + 20675.

It is an arithmetic number, because the mean of its divisors is an integer number (19521453).

Almost surely, 2^130087505 is an apocalyptic number.

It is an amenable number.

130087505 is a deficient number, since it is larger than the sum of its proper divisors (26084119).

130087505 is an equidigital number, since it uses as much as digits as its factorization.

130087505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11107.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 130087505 is about 11405.5909535631. The cubic root of 130087505 is about 506.6933386140.

The spelling of 130087505 in words is "one hundred thirty million, eighty-seven thousand, five hundred five".