313385971 has 4 divisors (see below), whose sum is σ = 327011472. Its totient is φ = 299760472.

The previous prime is 313385957. The next prime is 313386043. The reversal of 313385971 is 179583313.

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

It is not a de Polignac number, because 313385971 - 2⁹ = 313385459 is a prime.

It is a super-3 number, since 3×313385971³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313385921) 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, 6812716 + ... + 6812761.

It is an arithmetic number, because the mean of its divisors is an integer number (81752868).

Almost surely, 2^313385971 is an apocalyptic number.

313385971 is a deficient number, since it is larger than the sum of its proper divisors (13625501).

313385971 is a wasteful number, since it uses less digits than its factorization.

313385971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13625500.

The product of its digits is 68040, while the sum is 40.

The square root of 313385971 is about 17702.7108376090. The cubic root of 313385971 is about 679.2451044557.

The spelling of 313385971 in words is "three hundred thirteen million, three hundred eighty-five thousand, nine hundred seventy-one".