199907345 has 8 divisors (see below), whose sum is σ = 261696960. Its totient is φ = 145387120.

The previous prime is 199907333. The next prime is 199907359. The reversal of 199907345 is 543709991.

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

It is not a de Polignac number, because 199907345 - 2¹⁶ = 199841809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199907345.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1817285 + ... + 1817394.

It is an arithmetic number, because the mean of its divisors is an integer number (32712120).

Almost surely, 2^199907345 is an apocalyptic number.

It is an amenable number.

199907345 is a deficient number, since it is larger than the sum of its proper divisors (61789615).

199907345 is a wasteful number, since it uses less digits than its factorization.

199907345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3634695.

The product of its (nonzero) digits is 306180, while the sum is 47.

The square root of 199907345 is about 14138.8593952978. The cubic root of 199907345 is about 584.7132254053.

The spelling of 199907345 in words is "one hundred ninety-nine million, nine hundred seven thousand, three hundred forty-five".