352021 has 2 divisors, whose sum is σ = 352022. Its totient is φ = 352020.

The previous prime is 352007. The next prime is 352043. The reversal of 352021 is 120253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180625 + 171396 = 425^2 + 414^2 .

It is a cyclic number.

It is not a de Polignac number, because 352021 - 2¹³ = 343829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 351992 and 352010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (352081) 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 as a sum of consecutive naturals, namely, 176010 + 176011.

It is an arithmetic number, because the mean of its divisors is an integer number (176011).

2³⁵²⁰²¹ is an apocalyptic number.

It is an amenable number.

352021 is a deficient number, since it is larger than the sum of its proper divisors (1).

352021 is an equidigital number, since it uses as much as digits as its factorization.

352021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 352021 is about 593.3135764501. The cubic root of 352021 is about 70.6083707944.

Adding to 352021 its reverse (120253), we get a palindrome (472274).

It can be divided in two parts, 3520 and 21, that multiplied together give a triangular number (73920 = T₃₈₄).

The spelling of 352021 in words is "three hundred fifty-two thousand, twenty-one".