117273520 has 160 divisors (see below), whose sum is σ = 341228160. Its totient is φ = 36495360.

The previous prime is 117273511. The next prime is 117273521. The reversal of 117273520 is 25372711.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (117273521) 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 31 ways as a sum of consecutive naturals, for example, 647830 + ... + 648010.

It is an arithmetic number, because the mean of its divisors is an integer number (2132676).

Almost surely, 2^117273520 is an apocalyptic number.

117273520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117273520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170614080).

117273520 is an abundant number, since it is smaller than the sum of its proper divisors (223954640).

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

117273520 is a wasteful number, since it uses less digits than its factorization.

117273520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 117273520 is about 10829.2899120856. The cubic root of 117273520 is about 489.4781616530.

The spelling of 117273520 in words is "one hundred seventeen million, two hundred seventy-three thousand, five hundred twenty".