6313381 has 4 divisors (see below), whose sum is σ = 6318700. Its totient is φ = 6308064.

The previous prime is 6313379. The next prime is 6313397. The reversal of 6313381 is 1833136.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3389281 + 2924100 = 1841^2 + 1710^2 .

It is a cyclic number.

It is not a de Polignac number, because 6313381 - 2¹ = 6313379 is a prime.

It is a super-2 number, since 2×6313381² = 79717559302322, which contains 22 as substring.

It is a Duffinian number.

6313381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6313361) 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, 25 + ... + 3553.

It is an arithmetic number, because the mean of its divisors is an integer number (1579675).

Almost surely, 2^6313381 is an apocalyptic number.

It is an amenable number.

6313381 is a deficient number, since it is larger than the sum of its proper divisors (5319).

6313381 is a wasteful number, since it uses less digits than its factorization.

6313381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5318.

The product of its digits is 1296, while the sum is 25.

The square root of 6313381 is about 2512.6442247163. The cubic root of 6313381 is about 184.8221421874.

The spelling of 6313381 in words is "six million, three hundred thirteen thousand, three hundred eighty-one".