355300243 has 2 divisors, whose sum is σ = 355300244. Its totient is φ = 355300242.

The previous prime is 355300217. The next prime is 355300273. The reversal of 355300243 is 342003553.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 355300243 - 2⁹ = 355299731 is a prime.

It is not a weakly prime, because it can be changed into another prime (355300273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177650121 + 177650122.

It is an arithmetic number, because the mean of its divisors is an integer number (177650122).

Almost surely, 2^355300243 is an apocalyptic number.

355300243 is a deficient number, since it is larger than the sum of its proper divisors (1).

355300243 is an equidigital number, since it uses as much as digits as its factorization.

355300243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 355300243 is about 18849.4096194019. The cubic root of 355300243 is about 708.2694367215.

Adding to 355300243 its reverse (342003553), we get a palindrome (697303796).

The spelling of 355300243 in words is "three hundred fifty-five million, three hundred thousand, two hundred forty-three".