117788745 has 16 divisors (see below), whose sum is σ = 189453312. Its totient is φ = 62490240.

The previous prime is 117788729. The next prime is 117788753. The reversal of 117788745 is 547887711.

It is not a de Polignac number, because 117788745 - 2⁴ = 117788729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117788694 and 117788703.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17692 + ... + 23421.

It is an arithmetic number, because the mean of its divisors is an integer number (11840832).

Almost surely, 2^117788745 is an apocalyptic number.

117788745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117788745 is a deficient number, since it is larger than the sum of its proper divisors (71664567).

117788745 is a wasteful number, since it uses less digits than its factorization.

117788745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41312.

The product of its digits is 439040, while the sum is 48.

The square root of 117788745 is about 10853.0523356335. The cubic root of 117788745 is about 490.1939326755.

The spelling of 117788745 in words is "one hundred seventeen million, seven hundred eighty-eight thousand, seven hundred forty-five".