117942975 has 72 divisors (see below), whose sum is σ = 227485440. Its totient is φ = 58224960.

The previous prime is 117942949. The next prime is 117942983. The reversal of 117942975 is 579249711.

It is not a de Polignac number, because 117942975 - 2⁵ = 117942943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 117942975.

It is a congruent 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 71 ways as a sum of consecutive naturals, for example, 200632 + ... + 201218.

It is an arithmetic number, because the mean of its divisors is an integer number (3159520).

Almost surely, 2^117942975 is an apocalyptic number.

117942975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117942975 is a deficient number, since it is larger than the sum of its proper divisors (109542465).

117942975 is a wasteful number, since it uses less digits than its factorization.

117942975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669 (or 661 counting only the distinct ones).

The product of its digits is 158760, while the sum is 45.

The square root of 117942975 is about 10860.1553856287. The cubic root of 117942975 is about 490.4077890921.

The spelling of 117942975 in words is "one hundred seventeen million, nine hundred forty-two thousand, nine hundred seventy-five".