6507145 has 8 divisors (see below), whose sum is σ = 7824456. Its totient is φ = 5195136.

The previous prime is 6507143. The next prime is 6507157. The reversal of 6507145 is 5417056.

It can be written as a sum of positive squares in 4 ways, for example, as 573049 + 5934096 = 757^2 + 2436^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6507145 - 2¹ = 6507143 is a prime.

It is a Duffinian number.

6507145 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6507143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2269 + ... + 4261.

It is an arithmetic number, because the mean of its divisors is an integer number (978057).

Almost surely, 2^6507145 is an apocalyptic number.

It is an amenable number.

6507145 is a deficient number, since it is larger than the sum of its proper divisors (1317311).

6507145 is a wasteful number, since it uses less digits than its factorization.

6507145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2651.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 6507145 is about 2550.9106217192. The cubic root of 6507145 is about 186.6939143190.

The spelling of 6507145 in words is "six million, five hundred seven thousand, one hundred forty-five".