240312353 has 2 divisors, whose sum is σ = 240312354. Its totient is φ = 240312352.

The previous prime is 240312343. The next prime is 240312377. The reversal of 240312353 is 353213042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238023184 + 2289169 = 15428^2 + 1513^2 .

It is a cyclic number.

It is not a de Polignac number, because 240312353 - 2⁸ = 240312097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (240312313) by changing a digit.

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 as a sum of consecutive naturals, namely, 120156176 + 120156177.

It is an arithmetic number, because the mean of its divisors is an integer number (120156177).

Almost surely, 2^240312353 is an apocalyptic number.

It is an amenable number.

240312353 is a deficient number, since it is larger than the sum of its proper divisors (1).

240312353 is an equidigital number, since it uses as much as digits as its factorization.

240312353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 240312353 is about 15502.0112566080. The cubic root of 240312353 is about 621.7159824825.

Adding to 240312353 its reverse (353213042), we get a palindrome (593525395).

The spelling of 240312353 in words is "two hundred forty million, three hundred twelve thousand, three hundred fifty-three".