117018561 has 8 divisors (see below), whose sum is σ = 170208864. Its totient is φ = 70920320.

The previous prime is 117018553. The next prime is 117018571. The reversal of 117018561 is 165810711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117018561 - 2³ = 117018553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117018571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1772976 + ... + 1773041.

It is an arithmetic number, because the mean of its divisors is an integer number (21276108).

Almost surely, 2^117018561 is an apocalyptic number.

117018561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

117018561 is a deficient number, since it is larger than the sum of its proper divisors (53190303).

117018561 is a wasteful number, since it uses less digits than its factorization.

117018561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546031.

The product of its (nonzero) digits is 1680, while the sum is 30.

The square root of 117018561 is about 10817.5117748954. The cubic root of 117018561 is about 489.1231869171.

The spelling of 117018561 in words is "one hundred seventeen million, eighteen thousand, five hundred sixty-one".