117775529 has 2 divisors, whose sum is σ = 117775530. Its totient is φ = 117775528.

The previous prime is 117775523. The next prime is 117775531. The reversal of 117775529 is 925577711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107226025 + 10549504 = 10355^2 + 3248^2 .

It is an emirp because it is prime and its reverse (925577711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117775529 - 2⁴ = 117775513 is a prime.

Together with 117775531, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117775529.

It is not a weakly prime, because it can be changed into another prime (117775523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58887764 + 58887765.

It is an arithmetic number, because the mean of its divisors is an integer number (58887765).

Almost surely, 2^117775529 is an apocalyptic number.

It is an amenable number.

117775529 is a deficient number, since it is larger than the sum of its proper divisors (1).

117775529 is an equidigital number, since it uses as much as digits as its factorization.

117775529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 154350, while the sum is 44.

The square root of 117775529 is about 10852.4434575813. The cubic root of 117775529 is about 490.1755985941.

The spelling of 117775529 in words is "one hundred seventeen million, seven hundred seventy-five thousand, five hundred twenty-nine".