6751145 has 4 divisors (see below), whose sum is σ = 8101380. Its totient is φ = 5400912.

The previous prime is 6751123. The next prime is 6751153. The reversal of 6751145 is 5411576.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4376464 + 2374681 = 2092^2 + 1541^2 .

It is a cyclic number.

It is not a de Polignac number, because 6751145 - 2⁶ = 6751081 is a prime.

It is a super-2 number, since 2×6751145² = 91155917622050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675110 + ... + 675119.

It is an arithmetic number, because the mean of its divisors is an integer number (2025345).

Almost surely, 2^6751145 is an apocalyptic number.

It is an amenable number.

6751145 is a deficient number, since it is larger than the sum of its proper divisors (1350235).

6751145 is a wasteful number, since it uses less digits than its factorization.

6751145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350234.

The product of its digits is 4200, while the sum is 29.

The square root of 6751145 is about 2598.2965573621. The cubic root of 6751145 is about 188.9988428771.

The spelling of 6751145 in words is "six million, seven hundred fifty-one thousand, one hundred forty-five".