3212105 has 8 divisors (see below), whose sum is σ = 4151112. Its totient is φ = 2371968.

The previous prime is 3212101. The next prime is 3212117. The reversal of 3212105 is 5012123.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 512656 + 2699449 = 716^2 + 1643^2 .

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 3212105 - 2² = 3212101 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3212105.

It is not an unprimeable number, because it can be changed into a prime (3212101) 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, 24644 + ... + 24773.

It is an arithmetic number, because the mean of its divisors is an integer number (518889).

Almost surely, 2^3212105 is an apocalyptic number.

It is an amenable number.

3212105 is a deficient number, since it is larger than the sum of its proper divisors (939007).

3212105 is a wasteful number, since it uses less digits than its factorization.

3212105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49435.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 3212105 is about 1792.2346386564. The cubic root of 3212105 is about 147.5468394765.

Adding to 3212105 its reverse (5012123), we get a palindrome (8224228).

The spelling of 3212105 in words is "three million, two hundred twelve thousand, one hundred five".