117745783 has 4 divisors (see below), whose sum is σ = 118034080. Its totient is φ = 117457488.

The previous prime is 117745759. The next prime is 117745819. The reversal of 117745783 is 387547711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117745783 - 2¹³ = 117737591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117745183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143535 + ... + 144352.

It is an arithmetic number, because the mean of its divisors is an integer number (29508520).

Almost surely, 2^117745783 is an apocalyptic number.

117745783 is a deficient number, since it is larger than the sum of its proper divisors (288297).

117745783 is an equidigital number, since it uses as much as digits as its factorization.

117745783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288296.

The product of its digits is 164640, while the sum is 43.

The square root of 117745783 is about 10851.0728962624. The cubic root of 117745783 is about 490.1343280201.

The spelling of 117745783 in words is "one hundred seventeen million, seven hundred forty-five thousand, seven hundred eighty-three".