345944353 has 2 divisors, whose sum is σ = 345944354. Its totient is φ = 345944352.

The previous prime is 345944327. The next prime is 345944363. The reversal of 345944353 is 353449543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252396769 + 93547584 = 15887^2 + 9672^2 .

It is an emirp because it is prime and its reverse (353449543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345944353 - 2⁵ = 345944321 is a prime.

It is not a weakly prime, because it can be changed into another prime (345944323) 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 as a sum of consecutive naturals, namely, 172972176 + 172972177.

It is an arithmetic number, because the mean of its divisors is an integer number (172972177).

Almost surely, 2^345944353 is an apocalyptic number.

It is an amenable number.

345944353 is a deficient number, since it is larger than the sum of its proper divisors (1).

345944353 is an equidigital number, since it uses as much as digits as its factorization.

345944353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 40.

The square root of 345944353 is about 18599.5793769644. The cubic root of 345944353 is about 701.9972571815.

The spelling of 345944353 in words is "three hundred forty-five million, nine hundred forty-four thousand, three hundred fifty-three".