117618132025 has 27 divisors (see below), whose sum is σ = 147391401261. Its totient is φ = 93108167040.

The previous prime is 117618132017. The next prime is 117618132041. The reversal of 117618132025 is 520231816711.

The square root of 117618132025 is 342955.

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 59839433641 + 57778698384 = 244621^2 + 240372^2 .

It is not a de Polignac number, because 117618132025 - 2³ = 117618132017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 193769272 + ... + 193769878.

Almost surely, 2^117618132025 is an apocalyptic number.

117618132025 is the 342955-th square number.

117618132025 is the 171478-th centered octagonal number.

It is an amenable number.

117618132025 is a deficient number, since it is larger than the sum of its proper divisors (29773269236).

117618132025 is an frugal number, since it uses more digits than its factorization.

117618132025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

Adding to 117618132025 its reverse (520231816711), we get a palindrome (637849948736).

The spelling of 117618132025 in words is "one hundred seventeen billion, six hundred eighteen million, one hundred thirty-two thousand, twenty-five".