6966145 has 4 divisors (see below), whose sum is σ = 8359380. Its totient is φ = 5572912.

The previous prime is 6966109. The next prime is 6966149. The reversal of 6966145 is 5416696.

6966145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 929296 + 6036849 = 964^2 + 2457^2 .

It is a cyclic number.

It is not a de Polignac number, because 6966145 - 2²¹ = 4868993 is a prime.

It is a super-2 number, since 2×6966145² = 97054352322050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6966149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696610 + ... + 696619.

It is an arithmetic number, because the mean of its divisors is an integer number (2089845).

Almost surely, 2^6966145 is an apocalyptic number.

It is an amenable number.

6966145 is a deficient number, since it is larger than the sum of its proper divisors (1393235).

6966145 is a wasteful number, since it uses less digits than its factorization.

6966145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393234.

The product of its digits is 38880, while the sum is 37.

The square root of 6966145 is about 2639.3455628242. The cubic root of 6966145 is about 190.9842279311.

The spelling of 6966145 in words is "six million, nine hundred sixty-six thousand, one hundred forty-five".