6945128 has 16 divisors (see below), whose sum is σ = 13050180. Its totient is φ = 3465088.

The previous prime is 6945121. The next prime is 6945131. The reversal of 6945128 is 8215496.

It can be written as a sum of positive squares in 2 ways, for example, as 6853924 + 91204 = 2618^2 + 302^2 .

It is not an unprimeable number, because it can be changed into a prime (6945121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6350 + ... + 7362.

Almost surely, 2^6945128 is an apocalyptic number.

It is an amenable number.

6945128 is a deficient number, since it is larger than the sum of its proper divisors (6105052).

6945128 is a wasteful number, since it uses less digits than its factorization.

6945128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876 (or 1872 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 6945128 is about 2635.3610758300. The cubic root of 6945128 is about 190.7919666931.

The spelling of 6945128 in words is "six million, nine hundred forty-five thousand, one hundred twenty-eight".