3218146 has 16 divisors (see below), whose sum is σ = 4961088. Its totient is φ = 1565200.

The previous prime is 3218143. The next prime is 3218153. The reversal of 3218146 is 6418123.

It is a self number, because there is not a number n which added to its sum of digits gives 3218146.

It is not an unprimeable number, because it can be changed into a prime (3218143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18516 + ... + 18688.

It is an arithmetic number, because the mean of its divisors is an integer number (310068).

Almost surely, 2^3218146 is an apocalyptic number.

3218146 is a deficient number, since it is larger than the sum of its proper divisors (1742942).

3218146 is a wasteful number, since it uses less digits than its factorization.

3218146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377.

The product of its digits is 1152, while the sum is 25.

The square root of 3218146 is about 1793.9191732071. The cubic root of 3218146 is about 147.6392785744.

It can be divided in two parts, 3218 and 146, that added together give a square (3364 = 58²).

The spelling of 3218146 in words is "three million, two hundred eighteen thousand, one hundred forty-six".