3147147 has 16 divisors (see below), whose sum is σ = 4692000. Its totient is φ = 2084832.

The previous prime is 3147143. The next prime is 3147149. The reversal of 3147147 is 7417413.

It is not a de Polignac number, because 3147147 - 2² = 3147143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 3147147.

It is not an unprimeable number, because it can be changed into a prime (3147143) 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, 5929 + ... + 6437.

It is an arithmetic number, because the mean of its divisors is an integer number (293250).

Almost surely, 2^3147147 is an apocalyptic number.

3147147 is a deficient number, since it is larger than the sum of its proper divisors (1544853).

3147147 is a wasteful number, since it uses less digits than its factorization.

3147147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 741 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 3147147 is about 1774.0200111611. The cubic root of 3147147 is about 146.5454513852.

It can be divided in two parts, 314714 and 7, that added together give a square (314721 = 561²).

The spelling of 3147147 in words is "three million, one hundred forty-seven thousand, one hundred forty-seven".