319312199 has 2 divisors, whose sum is σ = 319312200. Its totient is φ = 319312198.

The previous prime is 319312177. The next prime is 319312229. The reversal of 319312199 is 991213913.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 319312199 - 2⁸ = 319311943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (319312099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159656099 + 159656100.

It is an arithmetic number, because the mean of its divisors is an integer number (159656100).

Almost surely, 2^319312199 is an apocalyptic number.

319312199 is a deficient number, since it is larger than the sum of its proper divisors (1).

319312199 is an equidigital number, since it uses as much as digits as its factorization.

319312199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13122, while the sum is 38.

The square root of 319312199 is about 17869.3088562485. The cubic root of 319312199 is about 683.4999758298.

The spelling of 319312199 in words is "three hundred nineteen million, three hundred twelve thousand, one hundred ninety-nine".