199304023 has 4 divisors (see below), whose sum is σ = 199338328. Its totient is φ = 199269720.

The previous prime is 199303997. The next prime is 199304033. The reversal of 199304023 is 320403991.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199304023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199304033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6036 + ... + 20857.

It is an arithmetic number, because the mean of its divisors is an integer number (49834582).

Almost surely, 2^199304023 is an apocalyptic number.

199304023 is a deficient number, since it is larger than the sum of its proper divisors (34305).

199304023 is an equidigital number, since it uses as much as digits as its factorization.

199304023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34304.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 199304023 is about 14117.5076766404. The cubic root of 199304023 is about 584.1244095604.

The spelling of 199304023 in words is "one hundred ninety-nine million, three hundred four thousand, twenty-three".