3222145 has 8 divisors (see below), whose sum is σ = 3971304. Its totient is φ = 2507904.

The previous prime is 3222137. The next prime is 3222151. The reversal of 3222145 is 5412223.

It can be written as a sum of positive squares in 4 ways, for example, as 1723969 + 1498176 = 1313^2 + 1224^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3222145 - 2³ = 3222137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8524 + ... + 8893.

It is an arithmetic number, because the mean of its divisors is an integer number (496413).

Almost surely, 2^3222145 is an apocalyptic number.

It is an amenable number.

3222145 is a deficient number, since it is larger than the sum of its proper divisors (749159).

3222145 is a wasteful number, since it uses less digits than its factorization.

3222145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17459.

The product of its digits is 480, while the sum is 19.

The square root of 3222145 is about 1795.0334258726. The cubic root of 3222145 is about 147.7004074654.

Adding to 3222145 its reverse (5412223), we get a palindrome (8634368).

It can be divided in two parts, 3 and 222145, that multiplied together give a triangular number (666435 = T₁₁₅₄).

The spelling of 3222145 in words is "three million, two hundred twenty-two thousand, one hundred forty-five".