117381745 has 8 divisors (see below), whose sum is σ = 151693416. Its totient is φ = 86681856.

The previous prime is 117381731. The next prime is 117381769. The reversal of 117381745 is 547183711.

It can be written as a sum of positive squares in 4 ways, for example, as 14622976 + 102758769 = 3824^2 + 10137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117381745 - 2⁵ = 117381713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902872 + ... + 903001.

It is an arithmetic number, because the mean of its divisors is an integer number (18961677).

Almost surely, 2^117381745 is an apocalyptic number.

It is an amenable number.

117381745 is a deficient number, since it is larger than the sum of its proper divisors (34311671).

117381745 is a wasteful number, since it uses less digits than its factorization.

117381745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805891.

The product of its digits is 23520, while the sum is 37.

The square root of 117381745 is about 10834.2856248116. The cubic root of 117381745 is about 489.6286857921.

The spelling of 117381745 in words is "one hundred seventeen million, three hundred eighty-one thousand, seven hundred forty-five".