117191272 has 16 divisors (see below), whose sum is σ = 239709600. Its totient is φ = 53268720.

The previous prime is 117191267. The next prime is 117191293. The reversal of 117191272 is 272191711.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665772 + ... + 665947.

It is an arithmetic number, because the mean of its divisors is an integer number (14981850).

Almost surely, 2^117191272 is an apocalyptic number.

It is an amenable number.

117191272 is an abundant number, since it is smaller than the sum of its proper divisors (122518328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117191272 is a wasteful number, since it uses less digits than its factorization.

117191272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331736 (or 1331732 counting only the distinct ones).

The product of its digits is 1764, while the sum is 31.

The square root of 117191272 is about 10825.4917671208. The cubic root of 117191272 is about 489.3637055363.

The spelling of 117191272 in words is "one hundred seventeen million, one hundred ninety-one thousand, two hundred seventy-two".