117144471 has 8 divisors (see below), whose sum is σ = 156264064. Its totient is φ = 78060600.

The previous prime is 117144463. The next prime is 117144491. The reversal of 117144471 is 174441711.

117144471 is a nontrivial binomial coefficient, being equal to C(15307, 2).

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

It is not a de Polignac number, because 117144471 - 2³ = 117144463 is a prime.

It is a super-3 number, since 3×117144471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117144491) 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, 1 + ... + 15306.

It is an arithmetic number, because the mean of its divisors is an integer number (19533008).

Almost surely, 2^117144471 is an apocalyptic number.

117144471 is the 15306-th triangular number.

117144471 is a deficient number, since it is larger than the sum of its proper divisors (39119593).

117144471 is a wasteful number, since it uses less digits than its factorization.

117144471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17861.

The product of its digits is 3136, while the sum is 30.

The square root of 117144471 is about 10823.3299404573. The cubic root of 117144471 is about 489.2985534709.

The spelling of 117144471 in words is "one hundred seventeen million, one hundred forty-four thousand, four hundred seventy-one".