235140718997 has 2 divisors, whose sum is σ = 235140718998. Its totient is φ = 235140718996.

The previous prime is 235140718993. The next prime is 235140719041. The reversal of 235140718997 is 799817041532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156340369201 + 78800349796 = 395399^2 + 280714^2 .

It is a cyclic number.

It is not a de Polignac number, because 235140718997 - 2² = 235140718993 is a prime.

It is a super-2 number, since 2×235140718997² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235140718993) 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, 117570359498 + 117570359499.

It is an arithmetic number, because the mean of its divisors is an integer number (117570359499).

Almost surely, 2^235140718997 is an apocalyptic number.

It is an amenable number.

235140718997 is a deficient number, since it is larger than the sum of its proper divisors (1).

235140718997 is an equidigital number, since it uses as much as digits as its factorization.

235140718997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The spelling of 235140718997 in words is "two hundred thirty-five billion, one hundred forty million, seven hundred eighteen thousand, nine hundred ninety-seven".