240309994853 has 2 divisors, whose sum is σ = 240309994854. Its totient is φ = 240309994852.

The previous prime is 240309994849. The next prime is 240309994871. The reversal of 240309994853 is 358499903042.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122260716964 + 118049277889 = 349658^2 + 343583^2 .

It is a cyclic number.

It is not a de Polignac number, because 240309994853 - 2² = 240309994849 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240309994823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120154997426 + 120154997427.

It is an arithmetic number, because the mean of its divisors is an integer number (120154997427).

Almost surely, 2^240309994853 is an apocalyptic number.

It is an amenable number.

240309994853 is a deficient number, since it is larger than the sum of its proper divisors (1).

240309994853 is an equidigital number, since it uses as much as digits as its factorization.

240309994853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 240309994853 in words is "two hundred forty billion, three hundred nine million, nine hundred ninety-four thousand, eight hundred fifty-three".