10857191 has 2 divisors, whose sum is σ = 10857192. Its totient is φ = 10857190.

The previous prime is 10857167. The next prime is 10857193. The reversal of 10857191 is 19175801.

It is a strong prime.

It is an emirp because it is prime and its reverse (19175801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10857191 - 2¹⁴ = 10840807 is a prime.

It is a Sophie Germain prime.

Together with 10857193, 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 (10857193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5428595 + 5428596.

It is an arithmetic number, because the mean of its divisors is an integer number (5428596).

Almost surely, 2^10857191 is an apocalyptic number.

10857191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10857191 is an equidigital number, since it uses as much as digits as its factorization.

10857191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 32.

The square root of 10857191 is about 3295.0251895851. The cubic root of 10857191 is about 221.4313762689.

The spelling of 10857191 in words is "ten million, eight hundred fifty-seven thousand, one hundred ninety-one".