3218101 has 4 divisors (see below), whose sum is σ = 3329100. Its totient is φ = 3107104.

The previous prime is 3218093. The next prime is 3218119. The reversal of 3218101 is 1018123.

3218101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 998001 + 2220100 = 999^2 + 1490^2 .

It is a cyclic number.

It is not a de Polignac number, because 3218101 - 2³ = 3218093 is a prime.

It is an Ulam number.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3218161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55456 + ... + 55513.

It is an arithmetic number, because the mean of its divisors is an integer number (832275).

Almost surely, 2^3218101 is an apocalyptic number.

It is an amenable number.

3218101 is a deficient number, since it is larger than the sum of its proper divisors (110999).

3218101 is a wasteful number, since it uses less digits than its factorization.

3218101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110998.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 3218101 is about 1793.9066307921. The cubic root of 3218101 is about 147.6385904143.

The spelling of 3218101 in words is "three million, two hundred eighteen thousand, one hundred one".