117271889 has 4 divisors (see below), whose sum is σ = 134025024. Its totient is φ = 100518756.

The previous prime is 117271883. The next prime is 117271897. The reversal of 117271889 is 988172711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 988172711 = 4583 ⋅215617.

It is a cyclic number.

It is not a de Polignac number, because 117271889 - 2⁴ = 117271873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117271883) 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 3 ways as a sum of consecutive naturals, for example, 8376557 + ... + 8376570.

It is an arithmetic number, because the mean of its divisors is an integer number (33506256).

Almost surely, 2^117271889 is an apocalyptic number.

It is an amenable number.

117271889 is a deficient number, since it is larger than the sum of its proper divisors (16753135).

117271889 is an equidigital number, since it uses as much as digits as its factorization.

117271889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16753134.

The product of its digits is 56448, while the sum is 44.

The square root of 117271889 is about 10829.2146067940. The cubic root of 117271889 is about 489.4758924776.

The spelling of 117271889 in words is "one hundred seventeen million, two hundred seventy-one thousand, eight hundred eighty-nine".