345353 has 4 divisors (see below), whose sum is σ = 347028. Its totient is φ = 343680.

The previous prime is 345329. The next prime is 345379. The reversal of 345353 is 353543.

Added to its reverse (353543) it gives a square (698896 = 836²).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 353543 = 41 ⋅8623.

It can be written as a sum of positive squares in 2 ways, for example, as 273529 + 71824 = 523^2 + 268^2 .

It is a cyclic number.

It is not a de Polignac number, because 345353 - 2¹⁶ = 279817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476 + ... + 957.

It is an arithmetic number, because the mean of its divisors is an integer number (86757).

2³⁴⁵³⁵³ is an apocalyptic number.

It is an amenable number.

345353 is a deficient number, since it is larger than the sum of its proper divisors (1675).

345353 is a wasteful number, since it uses less digits than its factorization.

345353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674.

The product of its digits is 2700, while the sum is 23.

The square root of 345353 is about 587.6674229528. The cubic root of 345353 is about 70.1597033905.

Adding to 345353 its reverse (353543), we get a palindrome (698896).

The spelling of 345353 in words is "three hundred forty-five thousand, three hundred fifty-three".