340145191 has 2 divisors, whose sum is σ = 340145192. Its totient is φ = 340145190.

The previous prime is 340145177. The next prime is 340145209. The reversal of 340145191 is 191541043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340145191 - 2⁵ = 340145159 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 (340145171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170072595 + 170072596.

It is an arithmetic number, because the mean of its divisors is an integer number (170072596).

Almost surely, 2^340145191 is an apocalyptic number.

340145191 is a deficient number, since it is larger than the sum of its proper divisors (1).

340145191 is an equidigital number, since it uses as much as digits as its factorization.

340145191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 340145191 is about 18443.0255381269. The cubic root of 340145191 is about 698.0525400855.

The spelling of 340145191 in words is "three hundred forty million, one hundred forty-five thousand, one hundred ninety-one".