3147345 has 12 divisors (see below), whose sum is σ = 5455476. Its totient is φ = 1678560.

The previous prime is 3147323. The next prime is 3147349. The reversal of 3147345 is 5437413.

3147345 is a `hidden beast` number, since 314 + 7 + 345 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 685584 + 2461761 = 828^2 + 1569^2 .

It is not a de Polignac number, because 3147345 - 2⁹ = 3146833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3147349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34926 + ... + 35015.

It is an arithmetic number, because the mean of its divisors is an integer number (454623).

Almost surely, 2^3147345 is an apocalyptic number.

It is an amenable number.

3147345 is a deficient number, since it is larger than the sum of its proper divisors (2308131).

3147345 is a wasteful number, since it uses less digits than its factorization.

3147345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69952 (or 69949 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 3147345 is about 1774.0758157418. The cubic root of 3147345 is about 146.5485245803.

The spelling of 3147345 in words is "three million, one hundred forty-seven thousand, three hundred forty-five".