199103405 has 8 divisors (see below), whose sum is σ = 252978552. Its totient is φ = 149913088.

The previous prime is 199103389. The next prime is 199103419. The reversal of 199103405 is 504301991.

It can be written as a sum of positive squares in 4 ways, for example, as 23222761 + 175880644 = 4819^2 + 13262^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 199103405 - 2⁴ = 199103389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 1171112 + ... + 1171281.

It is an arithmetic number, because the mean of its divisors is an integer number (31622319).

Almost surely, 2^199103405 is an apocalyptic number.

It is an amenable number.

199103405 is a deficient number, since it is larger than the sum of its proper divisors (53875147).

199103405 is a wasteful number, since it uses less digits than its factorization.

199103405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342415.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 199103405 is about 14110.4005967230. The cubic root of 199103405 is about 583.9283519486.

The spelling of 199103405 in words is "one hundred ninety-nine million, one hundred three thousand, four hundred five".