355145235305 has 12 divisors (see below), whose sum is σ = 495753757380. Its totient is φ = 243528161184.

The previous prime is 355145235299. The next prime is 355145235353. The reversal of 355145235305 is 503532541553.

It can be written as a sum of positive squares in 2 ways, for example, as 129793752361 + 225351482944 = 360269^2 + 474712^2 .

It is not a de Polignac number, because 355145235305 - 2¹⁴ = 355145218921 is a prime.

It is a super-2 number, since 2×355145235305² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 724785950 + ... + 724786439.

It is an arithmetic number, because the mean of its divisors is an integer number (41312813115).

Almost surely, 2^355145235305 is an apocalyptic number.

355145235305 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

355145235305 is a deficient number, since it is larger than the sum of its proper divisors (140608522075).

355145235305 is a wasteful number, since it uses less digits than its factorization.

355145235305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449572408 (or 1449572401 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 41.

Adding to 355145235305 its reverse (503532541553), we get a palindrome (858677776858).

The spelling of 355145235305 in words is "three hundred fifty-five billion, one hundred forty-five million, two hundred thirty-five thousand, three hundred five".