117588645 has 16 divisors (see below), whose sum is σ = 209046720. Its totient is φ = 62713872.

The previous prime is 117588637. The next prime is 117588659. The reversal of 117588645 is 546885711.

117588645 is a `hidden beast` number, since 1 + 1 + 7 + 588 + 64 + 5 = 666.

It is not a de Polignac number, because 117588645 - 2³ = 117588637 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 117588645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435379 + ... + 435648.

It is an arithmetic number, because the mean of its divisors is an integer number (13065420).

Almost surely, 2^117588645 is an apocalyptic number.

117588645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117588645 is a deficient number, since it is larger than the sum of its proper divisors (91458075).

117588645 is an equidigital number, since it uses as much as digits as its factorization.

117588645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871041 (or 871035 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 117588645 is about 10843.8298123864. The cubic root of 117588645 is about 489.9161941915.

The spelling of 117588645 in words is "one hundred seventeen million, five hundred eighty-eight thousand, six hundred forty-five".