345520333 has 4 divisors (see below), whose sum is σ = 345568860. Its totient is φ = 345471808.

The previous prime is 345520267. The next prime is 345520349. The reversal of 345520333 is 333025543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 333025543 = 5711 ⋅58313.

It can be written as a sum of positive squares in 2 ways, for example, as 265918249 + 79602084 = 16307^2 + 8922^2 .

It is a cyclic number.

It is not a de Polignac number, because 345520333 - 2⁹ = 345519821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345520363) 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 in 3 ways as a sum of consecutive naturals, for example, 11260 + ... + 28597.

It is an arithmetic number, because the mean of its divisors is an integer number (86392215).

Almost surely, 2^345520333 is an apocalyptic number.

It is an amenable number.

345520333 is a deficient number, since it is larger than the sum of its proper divisors (48527).

345520333 is an equidigital number, since it uses as much as digits as its factorization.

345520333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48526.

The product of its (nonzero) digits is 16200, while the sum is 28.

The square root of 345520333 is about 18588.1772371580. The cubic root of 345520333 is about 701.7103299435.

Adding to 345520333 its reverse (333025543), we get a palindrome (678545876).

The spelling of 345520333 in words is "three hundred forty-five million, five hundred twenty thousand, three hundred thirty-three".