234640117 has 2 divisors, whose sum is σ = 234640118. Its totient is φ = 234640116.

The previous prime is 234640057. The next prime is 234640123. The reversal of 234640117 is 711046432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177395761 + 57244356 = 13319^2 + 7566^2 .

It is a cyclic number.

It is not a de Polignac number, because 234640117 - 2⁷ = 234639989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234640127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117320058 + 117320059.

It is an arithmetic number, because the mean of its divisors is an integer number (117320059).

Almost surely, 2^234640117 is an apocalyptic number.

It is an amenable number.

234640117 is a deficient number, since it is larger than the sum of its proper divisors (1).

234640117 is an equidigital number, since it uses as much as digits as its factorization.

234640117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 234640117 is about 15317.9671301384. The cubic root of 234640117 is about 616.7854055584.

Adding to 234640117 its reverse (711046432), we get a palindrome (945686549).

The spelling of 234640117 in words is "two hundred thirty-four million, six hundred forty thousand, one hundred seventeen".