340199191 has 4 divisors (see below), whose sum is σ = 340282800. Its totient is φ = 340115584.

The previous prime is 340199183. The next prime is 340199213. The reversal of 340199191 is 191991043.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 340199191 - 2³ = 340199183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 340199191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340199131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35371 + ... + 43948.

It is an arithmetic number, because the mean of its divisors is an integer number (85070700).

Almost surely, 2^340199191 is an apocalyptic number.

340199191 is a deficient number, since it is larger than the sum of its proper divisors (83609).

340199191 is an equidigital number, since it uses as much as digits as its factorization.

340199191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83608.

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 340199191 is about 18444.4894480709. The cubic root of 340199191 is about 698.0894780790.

The spelling of 340199191 in words is "three hundred forty million, one hundred ninety-nine thousand, one hundred ninety-one".