345199999 has 8 divisors (see below), whose sum is σ = 363795840. Its totient is φ = 326646936.

The previous prime is 345199997. The next prime is 345200017. The reversal of 345199999 is 999991543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 345199999 - 2¹ = 345199997 is a prime.

It is a Duffinian number.

345199999 is a modest number, since divided by 99999 gives 3451 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345199997) 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 in 7 ways as a sum of consecutive naturals, for example, 6612 + ... + 27094.

It is an arithmetic number, because the mean of its divisors is an integer number (45474480).

Almost surely, 2^345199999 is an apocalyptic number.

345199999 is a deficient number, since it is larger than the sum of its proper divisors (18595841).

345199999 is a wasteful number, since it uses less digits than its factorization.

345199999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21389.

The product of its digits is 3542940, while the sum is 58.

The square root of 345199999 is about 18579.5586330785. The cubic root of 345199999 is about 701.4934095902.

The spelling of 345199999 in words is "three hundred forty-five million, one hundred ninety-nine thousand, nine hundred ninety-nine".