355063381 has 2 divisors, whose sum is σ = 355063382. Its totient is φ = 355063380.

The previous prime is 355063339. The next prime is 355063391. The reversal of 355063381 is 183360553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350962756 + 4100625 = 18734^2 + 2025^2 .

It is a cyclic number.

It is not a de Polignac number, because 355063381 - 2⁷ = 355063253 is a prime.

It is a super-2 number, since 2×355063381² = 252140009054302322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355063391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177531690 + 177531691.

It is an arithmetic number, because the mean of its divisors is an integer number (177531691).

Almost surely, 2^355063381 is an apocalyptic number.

It is an amenable number.

355063381 is a deficient number, since it is larger than the sum of its proper divisors (1).

355063381 is an equidigital number, since it uses as much as digits as its factorization.

355063381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 355063381 is about 18843.1255634515. The cubic root of 355063381 is about 708.1120117340.

The spelling of 355063381 in words is "three hundred fifty-five million, sixty-three thousand, three hundred eighty-one".