117805149 has 96 divisors (see below), whose sum is σ = 233625600. Its totient is φ = 55313280.

The previous prime is 117805147. The next prime is 117805169. The reversal of 117805149 is 941508711.

It is not a de Polignac number, because 117805149 - 2¹ = 117805147 is a prime.

117805149 is a modest number, since divided by 5149 gives 1178 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117805147) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 302647 + ... + 303035.

It is an arithmetic number, because the mean of its divisors is an integer number (2433600).

Almost surely, 2^117805149 is an apocalyptic number.

117805149 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

117805149 is a deficient number, since it is larger than the sum of its proper divisors (115820451).

117805149 is a wasteful number, since it uses less digits than its factorization.

117805149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 117805149 is about 10853.8080414203. The cubic root of 117805149 is about 490.2166874473.

The spelling of 117805149 in words is "one hundred seventeen million, eight hundred five thousand, one hundred forty-nine".