3001021 has 2 divisors, whose sum is σ = 3001022. Its totient is φ = 3001020.

The previous prime is 3001003. The next prime is 3001049. The reversal of 3001021 is 1201003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2524921 + 476100 = 1589^2 + 690^2 .

It is an emirp because it is prime and its reverse (1201003) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3001021 is a prime.

It is a super-2 number, since 2×3001021² = 18012254084882, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3000995 and 3001013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3001001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1500510 + 1500511.

It is an arithmetic number, because the mean of its divisors is an integer number (1500511).

Almost surely, 2^3001021 is an apocalyptic number.

It is an amenable number.

3001021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3001021 is an equidigital number, since it uses as much as digits as its factorization.

3001021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 3001021 is about 1732.3455198083. The cubic root of 3001021 is about 144.2413166951.

Adding to 3001021 its reverse (1201003), we get a palindrome (4202024).

The spelling of 3001021 in words is "three million, one thousand, twenty-one".