117854305 has 4 divisors (see below), whose sum is σ = 141425172. Its totient is φ = 94283440.

The previous prime is 117854299. The next prime is 117854411. The reversal of 117854305 is 503458711.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 81866304 + 35988001 = 9048^2 + 5999^2 .

It is not a de Polignac number, because 117854305 - 2⁹ = 117853793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11785426 + ... + 11785435.

It is an arithmetic number, because the mean of its divisors is an integer number (35356293).

Almost surely, 2^117854305 is an apocalyptic number.

It is an amenable number.

117854305 is a deficient number, since it is larger than the sum of its proper divisors (23570867).

117854305 is an equidigital number, since it uses as much as digits as its factorization.

117854305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23570866.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 117854305 is about 10856.0722639452. The cubic root of 117854305 is about 490.2848614358.

The spelling of 117854305 in words is "one hundred seventeen million, eight hundred fifty-four thousand, three hundred five".