117204142225 has 6 divisors (see below), whose sum is σ = 145333136390. Its totient is φ = 93763313760.

The previous prime is 117204142207. The next prime is 117204142229. The reversal of 117204142225 is 522241402711.

It can be written as a sum of positive squares in 3 ways, for example, as 41112023121 + 76092119104 = 202761^2 + 275848^2 .

It is not a de Polignac number, because 117204142225 - 2¹¹ = 117204140177 is a prime.

It is a super-3 number, since 3×117204142225³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (117204142229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2344082820 + ... + 2344082869.

Almost surely, 2^117204142225 is an apocalyptic number.

It is an amenable number.

117204142225 is a deficient number, since it is larger than the sum of its proper divisors (28128994165).

117204142225 is an equidigital number, since it uses as much as digits as its factorization.

117204142225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4688165699 (or 4688165694 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

Adding to 117204142225 its reverse (522241402711), we get a palindrome (639445544936).

The spelling of 117204142225 in words is "one hundred seventeen billion, two hundred four million, one hundred forty-two thousand, two hundred twenty-five".