117918401 has 8 divisors (see below), whose sum is σ = 123168384. Its totient is φ = 112678720.

The previous prime is 117918397. The next prime is 117918407. The reversal of 117918401 is 104819711.

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 117918401 - 2² = 117918397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117918407) 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, 29420 + ... + 33186.

It is an arithmetic number, because the mean of its divisors is an integer number (15396048).

Almost surely, 2^117918401 is an apocalyptic number.

It is an amenable number.

117918401 is a deficient number, since it is larger than the sum of its proper divisors (5249983).

117918401 is a wasteful number, since it uses less digits than its factorization.

117918401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5151.

The product of its (nonzero) digits is 2016, while the sum is 32.

The square root of 117918401 is about 10859.0239432465. The cubic root of 117918401 is about 490.3737270999.

The spelling of 117918401 in words is "one hundred seventeen million, nine hundred eighteen thousand, four hundred one".