319106409 has 4 divisors (see below), whose sum is σ = 425475216. Its totient is φ = 212737604.

The previous prime is 319106399. The next prime is 319106441. The reversal of 319106409 is 904601913.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 319106409 - 2⁸ = 319106153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 319106409.

It is not an unprimeable number, because it can be changed into a prime (319106449) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 53184399 + ... + 53184404.

It is an arithmetic number, because the mean of its divisors is an integer number (106368804).

Almost surely, 2^319106409 is an apocalyptic number.

It is an amenable number.

319106409 is a deficient number, since it is larger than the sum of its proper divisors (106368807).

319106409 is a wasteful number, since it uses less digits than its factorization.

319106409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106368806.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 319106409 is about 17863.5497312264. The cubic root of 319106409 is about 683.3531104858.

The spelling of 319106409 in words is "three hundred nineteen million, one hundred six thousand, four hundred nine".