355223345 has 4 divisors (see below), whose sum is σ = 426268020. Its totient is φ = 284178672.

The previous prime is 355223311. The next prime is 355223357. The reversal of 355223345 is 543322553.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543322553 = 409 ⋅1328417.

It can be written as a sum of positive squares in 2 ways, for example, as 141800464 + 213422881 = 11908^2 + 14609^2 .

It is a cyclic number.

It is not a de Polignac number, because 355223345 - 2²⁶ = 288114481 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 35522330 + ... + 35522339.

It is an arithmetic number, because the mean of its divisors is an integer number (106567005).

Almost surely, 2^355223345 is an apocalyptic number.

It is an amenable number.

355223345 is a deficient number, since it is larger than the sum of its proper divisors (71044675).

355223345 is an equidigital number, since it uses as much as digits as its factorization.

355223345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71044674.

The product of its digits is 54000, while the sum is 32.

The square root of 355223345 is about 18847.3697103866. The cubic root of 355223345 is about 708.2183358718.

Adding to 355223345 its reverse (543322553), we get a palindrome (898545898).

The spelling of 355223345 in words is "three hundred fifty-five million, two hundred twenty-three thousand, three hundred forty-five".