352805081 has 2 divisors, whose sum is σ = 352805082. Its totient is φ = 352805080.

The previous prime is 352805069. The next prime is 352805083. The reversal of 352805081 is 180508253.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 306565081 + 46240000 = 17509^2 + 6800^2 .

It is a cyclic number.

It is not a de Polignac number, because 352805081 - 2²² = 348610777 is a prime.

It is a super-2 number, since 2×352805081² = 248942850358833122, which contains 22 as substring.

Together with 352805083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (352805083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176402540 + 176402541.

It is an arithmetic number, because the mean of its divisors is an integer number (176402541).

Almost surely, 2^352805081 is an apocalyptic number.

It is an amenable number.

352805081 is a deficient number, since it is larger than the sum of its proper divisors (1).

352805081 is an equidigital number, since it uses as much as digits as its factorization.

352805081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 352805081 is about 18783.1062660040. The cubic root of 352805081 is about 706.6075557485.

The spelling of 352805081 in words is "three hundred fifty-two million, eight hundred five thousand, eighty-one".