319725953 has 4 divisors (see below), whose sum is σ = 338533380. Its totient is φ = 300918528.

The previous prime is 319725881. The next prime is 319725983. The reversal of 319725953 is 359527913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 359527913 = 10909 ⋅32957.

It can be written as a sum of positive squares in 2 ways, for example, as 277955584 + 41770369 = 16672^2 + 6463^2 .

It is a cyclic number.

It is not a de Polignac number, because 319725953 - 2⁸ = 319725697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (319725983) 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 in 3 ways as a sum of consecutive naturals, for example, 9403688 + ... + 9403721.

It is an arithmetic number, because the mean of its divisors is an integer number (84633345).

Almost surely, 2^319725953 is an apocalyptic number.

It is an amenable number.

319725953 is a deficient number, since it is larger than the sum of its proper divisors (18807427).

319725953 is a wasteful number, since it uses less digits than its factorization.

319725953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18807426.

The product of its digits is 255150, while the sum is 44.

The square root of 319725953 is about 17880.8823328157. The cubic root of 319725953 is about 683.7950671644.

The spelling of 319725953 in words is "three hundred nineteen million, seven hundred twenty-five thousand, nine hundred fifty-three".