3188225 has 6 divisors (see below), whose sum is σ = 3953430. Its totient is φ = 2550560.

The previous prime is 3188221. The next prime is 3188239. The reversal of 3188225 is 5228813.

It can be written as a sum of positive squares in 3 ways, for example, as 146689 + 3041536 = 383^2 + 1744^2 .

It is not a de Polignac number, because 3188225 - 2² = 3188221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3188221) 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 5 ways as a sum of consecutive naturals, for example, 63740 + ... + 63789.

It is an arithmetic number, because the mean of its divisors is an integer number (658905).

Almost surely, 2^3188225 is an apocalyptic number.

It is an amenable number.

3188225 is a deficient number, since it is larger than the sum of its proper divisors (765205).

3188225 is a wasteful number, since it uses less digits than its factorization.

3188225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127539 (or 127534 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 3188225 is about 1785.5601362038. The cubic root of 3188225 is about 147.1802899974.

The spelling of 3188225 in words is "three million, one hundred eighty-eight thousand, two hundred twenty-five".