352801021 has 2 divisors, whose sum is σ = 352801022. Its totient is φ = 352801020.

The previous prime is 352800997. The next prime is 352801091. The reversal of 352801021 is 120108253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 309372921 + 43428100 = 17589^2 + 6590^2 .

It is a cyclic number.

It is not a de Polignac number, because 352801021 - 2¹⁹ = 352276733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 352800983 and 352801001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (352801091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176400510 + 176400511.

It is an arithmetic number, because the mean of its divisors is an integer number (176400511).

Almost surely, 2^352801021 is an apocalyptic number.

It is an amenable number.

352801021 is a deficient number, since it is larger than the sum of its proper divisors (1).

352801021 is an equidigital number, since it uses as much as digits as its factorization.

352801021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 352801021 is about 18782.9981898524. The cubic root of 352801021 is about 706.6048452455.

Adding to 352801021 its reverse (120108253), we get a palindrome (472909274).

The spelling of 352801021 in words is "three hundred fifty-two million, eight hundred one thousand, twenty-one".