6581345 has 8 divisors (see below), whose sum is σ = 8009280. Its totient is φ = 5190640.

The previous prime is 6581339. The next prime is 6581357. The reversal of 6581345 is 5431856.

It is a happy number.

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

It is not a de Polignac number, because 6581345 - 2²² = 2387041 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, 8915 + ... + 9624.

It is an arithmetic number, because the mean of its divisors is an integer number (1001160).

Almost surely, 2^6581345 is an apocalyptic number.

It is an amenable number.

6581345 is a deficient number, since it is larger than the sum of its proper divisors (1427935).

6581345 is a wasteful number, since it uses less digits than its factorization.

6581345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18615.

The product of its digits is 14400, while the sum is 32.

The square root of 6581345 is about 2565.4132220755. The cubic root of 6581345 is about 187.4008483177.

The spelling of 6581345 in words is "six million, five hundred eighty-one thousand, three hundred forty-five".