319105253 has 4 divisors (see below), whose sum is σ = 323144640. Its totient is φ = 315065868.

The previous prime is 319105229. The next prime is 319105307. The reversal of 319105253 is 352501913.

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, and also an emirpimes, since its reverse is a distinct semiprime: 352501913 = 83 ⋅4247011.

It is a cyclic number.

It is not a de Polignac number, because 319105253 - 2²² = 314910949 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 (319105223) 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, 2019575 + ... + 2019732.

It is an arithmetic number, because the mean of its divisors is an integer number (80786160).

Almost surely, 2^319105253 is an apocalyptic number.

It is an amenable number.

319105253 is a deficient number, since it is larger than the sum of its proper divisors (4039387).

319105253 is an equidigital number, since it uses as much as digits as its factorization.

319105253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039386.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 319105253 is about 17863.5173748061. The cubic root of 319105253 is about 683.3522853095.

The spelling of 319105253 in words is "three hundred nineteen million, one hundred five thousand, two hundred fifty-three".