117219273436225 has 9 divisors (see below), whose sum is σ = 145351966187017. Its totient is φ = 93775375441840.

The previous prime is 117219273436219. The next prime is 117219273436229. The reversal of 117219273436225 is 522634372912711.

It is a happy number.

The square root of 117219273436225 is 10826785.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 29604731286529 + 87614542149696 = 5441023^2 + 9360264^2 .

It is not a de Polignac number, because 117219273436225 - 2⁵ = 117219273436193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117219273436229) 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 in 8 ways as a sum of consecutive naturals, for example, 53051247 + ... + 55216603.

Almost surely, 2^{117219273436225} is an apocalyptic number.

117219273436225 is the 10826785-th square number.

117219273436225 is the 5413393-rd centered octagonal number.

It is an amenable number.

117219273436225 is a deficient number, since it is larger than the sum of its proper divisors (28132692750792).

117219273436225 is an frugal number, since it uses more digits than its factorization.

117219273436225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4330724 (or 2165362 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 55.

The spelling of 117219273436225 in words is "one hundred seventeen trillion, two hundred nineteen billion, two hundred seventy-three million, four hundred thirty-six thousand, two hundred twenty-five".