117571 has 2 divisors, whose sum is σ = 117572. Its totient is φ = 117570.

The previous prime is 117563. The next prime is 117577. The reversal of 117571 is 175711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117571 - 2³ = 117563 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58785 + 58786.

It is an arithmetic number, because the mean of its divisors is an integer number (58786).

117571 is a Friedman number, since it can be written as (7^5-11)*7-1, using all its digits and the basic arithmetic operations.

2¹¹⁷⁵⁷¹ is an apocalyptic number.

117571 is a deficient number, since it is larger than the sum of its proper divisors (1).

117571 is an equidigital number, since it uses as much as digits as its factorization.

117571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 245, while the sum is 22.

The square root of 117571 is about 342.8862785239. The cubic root of 117571 is about 48.9891687847.

The spelling of 117571 in words is "one hundred seventeen thousand, five hundred seventy-one".