117312471 has 24 divisors (see below), whose sum is σ = 174270096. Its totient is φ = 76003200.

The previous prime is 117312469. The next prime is 117312487. The reversal of 117312471 is 174213711.

It is not a de Polignac number, because 117312471 - 2¹ = 117312469 is a prime.

It is a super-3 number, since 3×117312471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117312271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89521 + ... + 90821.

It is an arithmetic number, because the mean of its divisors is an integer number (7261254).

Almost surely, 2^117312471 is an apocalyptic number.

117312471 is a deficient number, since it is larger than the sum of its proper divisors (56957625).

117312471 is a wasteful number, since it uses less digits than its factorization.

117312471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583 (or 1580 counting only the distinct ones).

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

The square root of 117312471 is about 10831.0881724783. The cubic root of 117312471 is about 489.5323470976.

The spelling of 117312471 in words is "one hundred seventeen million, three hundred twelve thousand, four hundred seventy-one".