100268191 has 2 divisors, whose sum is σ = 100268192. Its totient is φ = 100268190.

The previous prime is 100268173. The next prime is 100268197. The reversal of 100268191 is 191862001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100268191 - 2¹⁵ = 100235423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100268197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50134095 + 50134096.

It is an arithmetic number, because the mean of its divisors is an integer number (50134096).

Almost surely, 2^100268191 is an apocalyptic number.

100268191 is a deficient number, since it is larger than the sum of its proper divisors (1).

100268191 is an equidigital number, since it uses as much as digits as its factorization.

100268191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 100268191 is about 10013.4005712345. The cubic root of 100268191 is about 464.5734570824.

The spelling of 100268191 in words is "one hundred million, two hundred sixty-eight thousand, one hundred ninety-one".