3431225 has 18 divisors (see below), whose sum is σ = 4951134. Its totient is φ = 2352000.

The previous prime is 3431221. The next prime is 3431237. The reversal of 3431225 is 5221343.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 219961 + 3211264 = 469^2 + 1792^2 .

It is not a de Polignac number, because 3431225 - 2² = 3431221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3431197 and 3431206.

It is not an unprimeable number, because it can be changed into a prime (3431221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 176 + ... + 2625.

It is an arithmetic number, because the mean of its divisors is an integer number (275063).

Almost surely, 2^3431225 is an apocalyptic number.

3431225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3431225 is a deficient number, since it is larger than the sum of its proper divisors (1519909).

3431225 is a wasteful number, since it uses less digits than its factorization.

3431225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825 (or 2813 counting only the distinct ones).

The product of its digits is 720, while the sum is 20.

The square root of 3431225 is about 1852.3566071359. The cubic root of 3431225 is about 150.8283797877.

Adding to 3431225 its reverse (5221343), we get a palindrome (8652568).

The spelling of 3431225 in words is "three million, four hundred thirty-one thousand, two hundred twenty-five".