117231147 has 24 divisors (see below), whose sum is σ = 185251248. Its totient is φ = 70848000.

The previous prime is 117231097. The next prime is 117231151. The reversal of 117231147 is 741132711.

It is not a de Polignac number, because 117231147 - 2⁸ = 117230891 is a prime.

It is a super-3 number, since 3×117231147³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 117231147.

It is not an unprimeable number, because it can be changed into a prime (117231157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38223 + ... + 41175.

It is an arithmetic number, because the mean of its divisors is an integer number (7718802).

Almost surely, 2^117231147 is an apocalyptic number.

117231147 is a deficient number, since it is larger than the sum of its proper divisors (68020101).

117231147 is a wasteful number, since it uses less digits than its factorization.

117231147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371 (or 3368 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 117231147 is about 10827.3333282023. Note that the first 4 decimals coincide. The cubic root of 117231147 is about 489.4192021748.

Adding to 117231147 its reverse (741132711), we get a palindrome (858363858).

The spelling of 117231147 in words is "one hundred seventeen million, two hundred thirty-one thousand, one hundred forty-seven".