3154021 has 4 divisors (see below), whose sum is σ = 3396652. Its totient is φ = 2911392.

The previous prime is 3154009. The next prime is 3154031. The reversal of 3154021 is 1204513.

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 216225 + 2937796 = 465^2 + 1714^2 .

It is a cyclic number.

It is not a de Polignac number, because 3154021 - 2⁵ = 3153989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3153986 and 3154004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3154001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121296 + ... + 121321.

It is an arithmetic number, because the mean of its divisors is an integer number (849163).

Almost surely, 2^3154021 is an apocalyptic number.

It is an amenable number.

3154021 is a deficient number, since it is larger than the sum of its proper divisors (242631).

3154021 is a wasteful number, since it uses less digits than its factorization.

3154021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242630.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 3154021 is about 1775.9563620765. The cubic root of 3154021 is about 146.6520686802.

Adding to 3154021 its reverse (1204513), we get a palindrome (4358534).

The spelling of 3154021 in words is "three million, one hundred fifty-four thousand, twenty-one".