117558642 has 16 divisors (see below), whose sum is σ = 235444320. Its totient is φ = 39131712.

The previous prime is 117558641. The next prime is 117558659. The reversal of 117558642 is 246855711.

It is a self number, because there is not a number n which added to its sum of digits gives 117558642.

It is not an unprimeable number, because it can be changed into a prime (117558641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8823 + ... + 17690.

It is an arithmetic number, because the mean of its divisors is an integer number (14715270).

Almost surely, 2^117558642 is an apocalyptic number.

117558642 is an abundant number, since it is smaller than the sum of its proper divisors (117885678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117558642 is a wasteful number, since it uses less digits than its factorization.

117558642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27257.

The product of its digits is 67200, while the sum is 39.

The square root of 117558642 is about 10842.4463106810. The cubic root of 117558642 is about 489.8745229176.

The spelling of 117558642 in words is "one hundred seventeen million, five hundred fifty-eight thousand, six hundred forty-two".