345391199 has 2 divisors, whose sum is σ = 345391200. Its totient is φ = 345391198.

The previous prime is 345391153. The next prime is 345391201. The reversal of 345391199 is 991193543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345391199 - 2¹² = 345387103 is a prime.

Together with 345391201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345391129) 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 as a sum of consecutive naturals, namely, 172695599 + 172695600.

It is an arithmetic number, because the mean of its divisors is an integer number (172695600).

Almost surely, 2^345391199 is an apocalyptic number.

345391199 is a deficient number, since it is larger than the sum of its proper divisors (1).

345391199 is an equidigital number, since it uses as much as digits as its factorization.

345391199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131220, while the sum is 44.

The square root of 345391199 is about 18584.7033605597. The cubic root of 345391199 is about 701.6229004986.

The spelling of 345391199 in words is "three hundred forty-five million, three hundred ninety-one thousand, one hundred ninety-nine".