240128117 has 2 divisors, whose sum is σ = 240128118. Its totient is φ = 240128116.

The previous prime is 240128101. The next prime is 240128129. The reversal of 240128117 is 711821042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207763396 + 32364721 = 14414^2 + 5689^2 .

It is a cyclic number.

It is not a de Polignac number, because 240128117 - 2⁴ = 240128101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240128167) 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, 120064058 + 120064059.

It is an arithmetic number, because the mean of its divisors is an integer number (120064059).

Almost surely, 2^240128117 is an apocalyptic number.

It is an amenable number.

240128117 is a deficient number, since it is larger than the sum of its proper divisors (1).

240128117 is an equidigital number, since it uses as much as digits as its factorization.

240128117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 240128117 is about 15496.0677915399. The cubic root of 240128117 is about 621.5570618830.

Adding to 240128117 its reverse (711821042), we get a palindrome (951949159).

The spelling of 240128117 in words is "two hundred forty million, one hundred twenty-eight thousand, one hundred seventeen".