117831001 has 8 divisors (see below), whose sum is σ = 123125184. Its totient is φ = 112551120.

The previous prime is 117830987. The next prime is 117831011. The reversal of 117831001 is 100138711.

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 117831001 - 2¹⁷ = 117699929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117831011) 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, 15495 + ... + 21811.

It is an arithmetic number, because the mean of its divisors is an integer number (15390648).

Almost surely, 2^117831001 is an apocalyptic number.

It is an amenable number.

117831001 is a deficient number, since it is larger than the sum of its proper divisors (5294183).

117831001 is an equidigital number, since it uses as much as digits as its factorization.

117831001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7151.

The product of its (nonzero) digits is 168, while the sum is 22.

The square root of 117831001 is about 10854.9988945186. The cubic root of 117831001 is about 490.2525437037.

Adding to 117831001 its reverse (100138711), we get a palindrome (217969712).

The spelling of 117831001 in words is "one hundred seventeen million, eight hundred thirty-one thousand, one".