333125021 has 2 divisors, whose sum is σ = 333125022. Its totient is φ = 333125020.

The previous prime is 333125011. The next prime is 333125057. The reversal of 333125021 is 120521333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192820996 + 140304025 = 13886^2 + 11845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-333125021 is a prime.

It is a super-2 number, since 2×333125021² = 221944559232500882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 333124984 and 333125002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (333125011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166562510 + 166562511.

It is an arithmetic number, because the mean of its divisors is an integer number (166562511).

Almost surely, 2^333125021 is an apocalyptic number.

It is an amenable number.

333125021 is a deficient number, since it is larger than the sum of its proper divisors (1).

333125021 is an equidigital number, since it uses as much as digits as its factorization.

333125021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 333125021 is about 18251.7128237325. The cubic root of 333125021 is about 693.2168085475.

Adding to 333125021 its reverse (120521333), we get a palindrome (453646354).

The spelling of 333125021 in words is "three hundred thirty-three million, one hundred twenty-five thousand, twenty-one".