130000187 has 4 divisors (see below), whose sum is σ = 132203640. Its totient is φ = 127796736.

The previous prime is 130000183. The next prime is 130000193. The reversal of 130000187 is 781000031.

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 130000187 - 2² = 130000183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130000181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101638 + ... + 1101755.

It is an arithmetic number, because the mean of its divisors is an integer number (33050910).

Almost surely, 2^130000187 is an apocalyptic number.

130000187 is a deficient number, since it is larger than the sum of its proper divisors (2203453).

130000187 is an equidigital number, since it uses as much as digits as its factorization.

130000187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203452.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 130000187 is about 11401.7624514809. The cubic root of 130000187 is about 506.5799448084.

The spelling of 130000187 in words is "one hundred thirty million, one hundred eighty-seven", and thus it is an aban number.