104213191 has 2 divisors, whose sum is σ = 104213192. Its totient is φ = 104213190.

The previous prime is 104213189. The next prime is 104213257. The reversal of 104213191 is 191312401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104213191 - 2¹ = 104213189 is a prime.

Together with 104213189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104213101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52106595 + 52106596.

It is an arithmetic number, because the mean of its divisors is an integer number (52106596).

Almost surely, 2^104213191 is an apocalyptic number.

104213191 is a deficient number, since it is larger than the sum of its proper divisors (1).

104213191 is an equidigital number, since it uses as much as digits as its factorization.

104213191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 104213191 is about 10208.4862247054. The cubic root of 104213191 is about 470.5880537325.

Adding to 104213191 its reverse (191312401), we get a palindrome (295525592).

The spelling of 104213191 in words is "one hundred four million, two hundred thirteen thousand, one hundred ninety-one".