117148988 has 12 divisors (see below), whose sum is σ = 223648152. Its totient is φ = 53249520.

The previous prime is 117148987. The next prime is 117149029. The reversal of 117148988 is 889841711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117148981) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1331195 + ... + 1331282.

It is an arithmetic number, because the mean of its divisors is an integer number (18637346).

Almost surely, 2^117148988 is an apocalyptic number.

It is an amenable number.

117148988 is a deficient number, since it is larger than the sum of its proper divisors (106499164).

117148988 is a wasteful number, since it uses less digits than its factorization.

117148988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662492 (or 2662490 counting only the distinct ones).

The product of its digits is 129024, while the sum is 47.

The square root of 117148988 is about 10823.5386080524. The cubic root of 117148988 is about 489.3048423811.

It can be divided in two parts, 11714 and 8988, that added together give a palindrome (20702).

The spelling of 117148988 in words is "one hundred seventeen million, one hundred forty-eight thousand, nine hundred eighty-eight".