355123345 has 16 divisors (see below), whose sum is σ = 437778432. Its totient is φ = 276384640.

The previous prime is 355123337. The next prime is 355123393. The reversal of 355123345 is 543321553.

It is not a de Polignac number, because 355123345 - 2³ = 355123337 is a prime.

It is a super-2 number, since 2×355123345² = 252225180327978050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76254 + ... + 80776.

It is an arithmetic number, because the mean of its divisors is an integer number (27361152).

Almost surely, 2^355123345 is an apocalyptic number.

It is an amenable number.

355123345 is a deficient number, since it is larger than the sum of its proper divisors (82655087).

355123345 is a wasteful number, since it uses less digits than its factorization.

355123345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4952.

The product of its digits is 27000, while the sum is 31.

The square root of 355123345 is about 18844.7166335819. The cubic root of 355123345 is about 708.1518720715.

Adding to 355123345 its reverse (543321553), we get a palindrome (898444898).

It can be divided in two parts, 3551 and 23345, that added together give a square (26896 = 164²).

The spelling of 355123345 in words is "three hundred fifty-five million, one hundred twenty-three thousand, three hundred forty-five".