10201987 has 2 divisors, whose sum is σ = 10201988. Its totient is φ = 10201986.

The previous prime is 10201963. The next prime is 10202009. The reversal of 10201987 is 78910201.

It is a strong prime.

It is an emirp because it is prime and its reverse (78910201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10201987 - 2⁷ = 10201859 is a prime.

It is not a weakly prime, because it can be changed into another prime (10201927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100993 + 5100994.

It is an arithmetic number, because the mean of its divisors is an integer number (5100994).

Almost surely, 2^10201987 is an apocalyptic number.

10201987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10201987 is an equidigital number, since it uses as much as digits as its factorization.

10201987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 10201987 is about 3194.0549463026. The cubic root of 10201987 is about 216.8843700049.

The spelling of 10201987 in words is "ten million, two hundred one thousand, nine hundred eighty-seven".