320106191 has 2 divisors, whose sum is σ = 320106192. Its totient is φ = 320106190.

The previous prime is 320106179. The next prime is 320106221. The reversal of 320106191 is 191601023.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320106191 - 2¹⁸ = 319844047 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320106691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160053095 + 160053096.

It is an arithmetic number, because the mean of its divisors is an integer number (160053096).

Almost surely, 2^320106191 is an apocalyptic number.

320106191 is a deficient number, since it is larger than the sum of its proper divisors (1).

320106191 is an equidigital number, since it uses as much as digits as its factorization.

320106191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 320106191 is about 17891.5117024806. The cubic root of 320106191 is about 684.0660303263.

The spelling of 320106191 in words is "three hundred twenty million, one hundred six thousand, one hundred ninety-one".