213332191 has 2 divisors, whose sum is σ = 213332192. Its totient is φ = 213332190.

The previous prime is 213332177. The next prime is 213332227. The reversal of 213332191 is 191233312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213332191 - 2¹⁵ = 213299423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213332101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106666095 + 106666096.

It is an arithmetic number, because the mean of its divisors is an integer number (106666096).

Almost surely, 2^213332191 is an apocalyptic number.

213332191 is a deficient number, since it is larger than the sum of its proper divisors (1).

213332191 is an equidigital number, since it uses as much as digits as its factorization.

213332191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 25.

The square root of 213332191 is about 14605.8957616437. The cubic root of 213332191 is about 597.5195663603.

The spelling of 213332191 in words is "two hundred thirteen million, three hundred thirty-two thousand, one hundred ninety-one".