868191341 has 2 divisors, whose sum is σ = 868191342. Its totient is φ = 868191340.

The previous prime is 868191329. The next prime is 868191367. The reversal of 868191341 is 143191868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 839782441 + 28408900 = 28979^2 + 5330^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-868191341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868191391) 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, 434095670 + 434095671.

It is an arithmetic number, because the mean of its divisors is an integer number (434095671).

Almost surely, 2^868191341 is an apocalyptic number.

It is an amenable number.

868191341 is a deficient number, since it is larger than the sum of its proper divisors (1).

868191341 is an equidigital number, since it uses as much as digits as its factorization.

868191341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 41.

The square root of 868191341 is about 29465.0868147372. The cubic root of 868191341 is about 953.9782722381.

The spelling of 868191341 in words is "eight hundred sixty-eight million, one hundred ninety-one thousand, three hundred forty-one".