117840605 has 8 divisors (see below), whose sum is σ = 143519712. Its totient is φ = 92865168.

The previous prime is 117840599. The next prime is 117840631. The reversal of 117840605 is 506048711.

It is a happy number.

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 117840605 - 2¹⁰ = 117839581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175547 + ... + 176216.

It is an arithmetic number, because the mean of its divisors is an integer number (17939964).

Almost surely, 2^117840605 is an apocalyptic number.

It is an amenable number.

117840605 is a deficient number, since it is larger than the sum of its proper divisors (25679107).

117840605 is an equidigital number, since it uses as much as digits as its factorization.

117840605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351835.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 117840605 is about 10855.4412623348. The cubic root of 117840605 is about 490.2658629419.

The spelling of 117840605 in words is "one hundred seventeen million, eight hundred forty thousand, six hundred five".