117772065 has 24 divisors (see below), whose sum is σ = 206250408. Its totient is φ = 62161920.

The previous prime is 117772037. The next prime is 117772079. The reversal of 117772065 is 560277711.

It can be written as a sum of positive squares in 4 ways, for example, as 613089 + 117158976 = 783^2 + 10824^2 .

It is not a de Polignac number, because 117772065 - 2⁶ = 117772001 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9126 + ... + 17855.

It is an arithmetic number, because the mean of its divisors is an integer number (8593767).

Almost surely, 2^117772065 is an apocalyptic number.

117772065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117772065 is a deficient number, since it is larger than the sum of its proper divisors (88478343).

117772065 is a wasteful number, since it uses less digits than its factorization.

117772065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27089 (or 27086 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 36.

The square root of 117772065 is about 10852.2838610129. The cubic root of 117772065 is about 490.1707928846.

The spelling of 117772065 in words is "one hundred seventeen million, seven hundred seventy-two thousand, sixty-five".