1300000987 has 2 divisors, whose sum is σ = 1300000988. Its totient is φ = 1300000986.

The previous prime is 1300000967. The next prime is 1300000991. The reversal of 1300000987 is 7890000031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1300000987 - 2²⁷ = 1165783259 is a prime.

It is not a weakly prime, because it can be changed into another prime (1300000927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650000493 + 650000494.

It is an arithmetic number, because the mean of its divisors is an integer number (650000494).

Almost surely, 2^1300000987 is an apocalyptic number.

1300000987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300000987 is an equidigital number, since it uses as much as digits as its factorization.

1300000987 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 1300000987 is about 36055.5264418646. The cubic root of 1300000987 is about 1091.3931592674.

The spelling of 1300000987 in words is "one billion, three hundred million, nine hundred eighty-seven", and thus it is an aban number.