6945081 has 16 divisors (see below), whose sum is σ = 10879680. Its totient is φ = 3885120.

The previous prime is 6945077. The next prime is 6945083. The reversal of 6945081 is 1805496.

It is not a de Polignac number, because 6945081 - 2² = 6945077 is a prime.

It is a super-2 number, since 2×6945081² = 96468300193122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (6945083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7666 + ... + 8523.

It is an arithmetic number, because the mean of its divisors is an integer number (679980).

Almost surely, 2^6945081 is an apocalyptic number.

It is an amenable number.

6945081 is a deficient number, since it is larger than the sum of its proper divisors (3934599).

6945081 is a wasteful number, since it uses less digits than its factorization.

6945081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16216.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 6945081 is about 2635.3521586308. The cubic root of 6945081 is about 190.7915363078.

It can be divided in two parts, 694 and 5081, that added together give a palindrome (5775).

The spelling of 6945081 in words is "six million, nine hundred forty-five thousand, eighty-one".