6807145 has 8 divisors (see below), whose sum is σ = 8183880. Its totient is φ = 5435520.

The previous prime is 6807139. The next prime is 6807181. The reversal of 6807145 is 5417086.

It can be written as a sum of positive squares in 4 ways, for example, as 350464 + 6456681 = 592^2 + 2541^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6807145 - 2³ = 6807137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2911 + ... + 4699.

It is an arithmetic number, because the mean of its divisors is an integer number (1022985).

Almost surely, 2^6807145 is an apocalyptic number.

It is an amenable number.

6807145 is a deficient number, since it is larger than the sum of its proper divisors (1376735).

6807145 is a wasteful number, since it uses less digits than its factorization.

6807145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 6807145 is about 2609.0505936068. The cubic root of 6807145 is about 189.5199794215.

The spelling of 6807145 in words is "six million, eight hundred seven thousand, one hundred forty-five".