117219571 has 4 divisors (see below), whose sum is σ = 133965232. Its totient is φ = 100473912.

The previous prime is 117219563. The next prime is 117219593. The reversal of 117219571 is 175912711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 175912711 = 13 ⋅13531747.

It is not a de Polignac number, because 117219571 - 2³ = 117219563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117219521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8372820 + ... + 8372833.

It is an arithmetic number, because the mean of its divisors is an integer number (33491308).

Almost surely, 2^117219571 is an apocalyptic number.

117219571 is a deficient number, since it is larger than the sum of its proper divisors (16745661).

117219571 is an equidigital number, since it uses as much as digits as its factorization.

117219571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16745660.

The product of its digits is 4410, while the sum is 34.

The square root of 117219571 is about 10826.7987420105. The cubic root of 117219571 is about 489.4030923971.

The spelling of 117219571 in words is "one hundred seventeen million, two hundred nineteen thousand, five hundred seventy-one".