130000987 has 2 divisors, whose sum is σ = 130000988. Its totient is φ = 130000986.

The previous prime is 130000961. The next prime is 130000993. The reversal of 130000987 is 789000031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130000987 is a prime.

It is not a weakly prime, because it can be changed into another prime (130000957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65000493 + 65000494.

It is an arithmetic number, because the mean of its divisors is an integer number (65000494).

Almost surely, 2^130000987 is an apocalyptic number.

130000987 is a deficient number, since it is larger than the sum of its proper divisors (1).

130000987 is an equidigital number, since it uses as much as digits as its factorization.

130000987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 130000987 is about 11401.7975337225. The cubic root of 130000987 is about 506.5809839432.

The spelling of 130000987 in words is "one hundred thirty million, nine hundred eighty-seven", and thus it is an aban number.