3005121 has 12 divisors (see below), whose sum is σ = 4661232. Its totient is φ = 1717128.

The previous prime is 3005117. The next prime is 3005129. The reversal of 3005121 is 1215003.

It is not a de Polignac number, because 3005121 - 2² = 3005117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3005097 and 3005106.

It is not an unprimeable number, because it can be changed into a prime (3005129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10075 + ... + 10368.

It is an arithmetic number, because the mean of its divisors is an integer number (388436).

Almost surely, 2^3005121 is an apocalyptic number.

It is an amenable number.

3005121 is a deficient number, since it is larger than the sum of its proper divisors (1656111).

3005121 is a wasteful number, since it uses less digits than its factorization.

3005121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20460 (or 20453 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 3005121 is about 1733.5284826042. The cubic root of 3005121 is about 144.3069743811.

The spelling of 3005121 in words is "three million, five thousand, one hundred twenty-one".