117811227 has 8 divisors (see below), whose sum is σ = 157233664. Its totient is φ = 78464808.

The previous prime is 117811193. The next prime is 117811231. The reversal of 117811227 is 722118711.

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

It is not a de Polignac number, because 117811227 - 2¹¹ = 117809179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117811194 and 117811203.

It is not an unprimeable number, because it can be changed into a prime (117811277) 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, 15283 + ... + 21660.

It is an arithmetic number, because the mean of its divisors is an integer number (19654208).

Almost surely, 2^117811227 is an apocalyptic number.

117811227 is a deficient number, since it is larger than the sum of its proper divisors (39422437).

117811227 is a wasteful number, since it uses less digits than its factorization.

117811227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38009.

The product of its digits is 1568, while the sum is 30.

The square root of 117811227 is about 10854.0880317049. The cubic root of 117811227 is about 490.2251179950.

Adding to 117811227 its reverse (722118711), we get a palindrome (839929938).

The spelling of 117811227 in words is "one hundred seventeen million, eight hundred eleven thousand, two hundred twenty-seven".