3261225 has 48 divisors (see below), whose sum is σ = 6071040. Its totient is φ = 1531200.

The previous prime is 3261221. The next prime is 3261241. The reversal of 3261225 is 5221623.

It is not a de Polignac number, because 3261225 - 2² = 3261221 is a prime.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (3261221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48642 + ... + 48708.

It is an arithmetic number, because the mean of its divisors is an integer number (126480).

Almost surely, 2^3261225 is an apocalyptic number.

It is an amenable number.

3261225 is a deficient number, since it is larger than the sum of its proper divisors (2809815).

3261225 is a wasteful number, since it uses less digits than its factorization.

3261225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 145 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 3261225 is about 1805.8862090398. The cubic root of 3261225 is about 148.2951408917.

Adding to 3261225 its reverse (5221623), we get a palindrome (8482848).

It can be divided in two parts, 3261 and 225, that added together give a triangular number (3486 = T₈₃).

The spelling of 3261225 in words is "three million, two hundred sixty-one thousand, two hundred twenty-five".