6315409 has 4 divisors (see below), whose sum is σ = 6590016. Its totient is φ = 6040804.

The previous prime is 6315403. The next prime is 6315433. The reversal of 6315409 is 9045136.

6315409 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6315409 - 2⁵ = 6315377 is a prime.

It is a Duffinian number.

6315409 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6315403) 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, 137269 + ... + 137314.

It is an arithmetic number, because the mean of its divisors is an integer number (1647504).

Almost surely, 2^6315409 is an apocalyptic number.

It is an amenable number.

6315409 is a deficient number, since it is larger than the sum of its proper divisors (274607).

6315409 is a wasteful number, since it uses less digits than its factorization.

6315409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274606.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 6315409 is about 2513.0477512375. The cubic root of 6315409 is about 184.8419297454.

It can be divided in two parts, 6315 and 409, that added together give a square (6724 = 82²).

The spelling of 6315409 in words is "six million, three hundred fifteen thousand, four hundred nine".