117171653 has 2 divisors, whose sum is σ = 117171654. Its totient is φ = 117171652.

The previous prime is 117171647. The next prime is 117171671. The reversal of 117171653 is 356171711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94342369 + 22829284 = 9713^2 + 4778^2 .

It is a cyclic number.

It is not a de Polignac number, because 117171653 - 2¹⁰ = 117170629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117171673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58585826 + 58585827.

It is an arithmetic number, because the mean of its divisors is an integer number (58585827).

Almost surely, 2^117171653 is an apocalyptic number.

It is an amenable number.

117171653 is a deficient number, since it is larger than the sum of its proper divisors (1).

117171653 is an equidigital number, since it uses as much as digits as its factorization.

117171653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4410, while the sum is 32.

The square root of 117171653 is about 10824.5855809818. The cubic root of 117171653 is about 489.3363958735.

The spelling of 117171653 in words is "one hundred seventeen million, one hundred seventy-one thousand, six hundred fifty-three".