3121801 has 8 divisors (see below), whose sum is σ = 3234560. Its totient is φ = 3010608.

The previous prime is 3121771. The next prime is 3121817. The reversal of 3121801 is 1081213.

3121801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3121801 - 2¹⁹ = 2597513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121831) 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 7 ways as a sum of consecutive naturals, for example, 4840 + ... + 5446.

It is an arithmetic number, because the mean of its divisors is an integer number (404320).

Almost surely, 2^3121801 is an apocalyptic number.

It is an amenable number.

3121801 is a deficient number, since it is larger than the sum of its proper divisors (112759).

3121801 is a wasteful number, since it uses less digits than its factorization.

3121801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783.

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

The square root of 3121801 is about 1766.8619074506. The cubic root of 3121801 is about 146.1509822367.

The spelling of 3121801 in words is "three million, one hundred twenty-one thousand, eight hundred one".