117120385 has 4 divisors (see below), whose sum is σ = 140544468. Its totient is φ = 93696304.

The previous prime is 117120383. The next prime is 117120401. The reversal of 117120385 is 583021711.

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 45684081 + 71436304 = 6759^2 + 8452^2 .

It is a cyclic number.

It is not a de Polignac number, because 117120385 - 2¹ = 117120383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117120383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11712034 + ... + 11712043.

It is an arithmetic number, because the mean of its divisors is an integer number (35136117).

Almost surely, 2^117120385 is an apocalyptic number.

It is an amenable number.

117120385 is a deficient number, since it is larger than the sum of its proper divisors (23424083).

117120385 is an equidigital number, since it uses as much as digits as its factorization.

117120385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23424082.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 117120385 is about 10822.2171942722. The cubic root of 117120385 is about 489.2650163844.

The spelling of 117120385 in words is "one hundred seventeen million, one hundred twenty thousand, three hundred eighty-five".