10191287 has 2 divisors, whose sum is σ = 10191288. Its totient is φ = 10191286.

The previous prime is 10191271. The next prime is 10191289. The reversal of 10191287 is 78219101.

10191287 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10191287 - 2⁴ = 10191271 is a prime.

Together with 10191289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10191289) 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, 5095643 + 5095644.

It is an arithmetic number, because the mean of its divisors is an integer number (5095644).

Almost surely, 2^10191287 is an apocalyptic number.

10191287 is a deficient number, since it is larger than the sum of its proper divisors (1).

10191287 is an equidigital number, since it uses as much as digits as its factorization.

10191287 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 29.

The square root of 10191287 is about 3192.3795200446. The cubic root of 10191287 is about 216.8085195996.

The spelling of 10191287 in words is "ten million, one hundred ninety-one thousand, two hundred eighty-seven".