117461845 has 4 divisors (see below), whose sum is σ = 140954220. Its totient is φ = 93969472.

The previous prime is 117461807. The next prime is 117461863. The reversal of 117461845 is 548164711.

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 17901361 + 99560484 = 4231^2 + 9978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117461845 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11746180 + ... + 11746189.

It is an arithmetic number, because the mean of its divisors is an integer number (35238555).

Almost surely, 2^117461845 is an apocalyptic number.

It is an amenable number.

117461845 is a deficient number, since it is larger than the sum of its proper divisors (23492375).

117461845 is an equidigital number, since it uses as much as digits as its factorization.

117461845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23492374.

The product of its digits is 26880, while the sum is 37.

The square root of 117461845 is about 10837.9815925291. The cubic root of 117461845 is about 489.7400328623.

The spelling of 117461845 in words is "one hundred seventeen million, four hundred sixty-one thousand, eight hundred forty-five".