117166541 has 2 divisors, whose sum is σ = 117166542. Its totient is φ = 117166540.

The previous prime is 117166523. The next prime is 117166547. The reversal of 117166541 is 145661711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102313225 + 14853316 = 10115^2 + 3854^2 .

It is a cyclic number.

It is not a de Polignac number, because 117166541 - 2¹⁴ = 117150157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117166498 and 117166507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117166547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58583270 + 58583271.

It is an arithmetic number, because the mean of its divisors is an integer number (58583271).

Almost surely, 2^117166541 is an apocalyptic number.

It is an amenable number.

117166541 is a deficient number, since it is larger than the sum of its proper divisors (1).

117166541 is an equidigital number, since it uses as much as digits as its factorization.

117166541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 32.

The square root of 117166541 is about 10824.3494492741. The cubic root of 117166541 is about 489.3292794650.

The spelling of 117166541 in words is "one hundred seventeen million, one hundred sixty-six thousand, five hundred forty-one".