117545242 has 32 divisors (see below), whose sum is σ = 193950720. Its totient is φ = 53187840.

The previous prime is 117545221. The next prime is 117545251. The reversal of 117545242 is 242545711.

It is a Harshad number since it is a multiple of its sum of digits (31).

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 15 ways as a sum of consecutive naturals, for example, 241123 + ... + 241609.

It is an arithmetic number, because the mean of its divisors is an integer number (6060960).

Almost surely, 2^117545242 is an apocalyptic number.

117545242 is a deficient number, since it is larger than the sum of its proper divisors (76405478).

117545242 is a wasteful number, since it uses less digits than its factorization.

117545242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766.

The product of its digits is 11200, while the sum is 31.

The square root of 117545242 is about 10841.8283513437. The cubic root of 117545242 is about 489.8559093193.

The spelling of 117545242 in words is "one hundred seventeen million, five hundred forty-five thousand, two hundred forty-two".