117765149 has 2 divisors, whose sum is σ = 117765150. Its totient is φ = 117765148.

The previous prime is 117765139. The next prime is 117765169. The reversal of 117765149 is 941567711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78889924 + 38875225 = 8882^2 + 6235^2 .

It is a cyclic number.

It is not a de Polignac number, because 117765149 - 2²⁴ = 100987933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117765119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58882574 + 58882575.

It is an arithmetic number, because the mean of its divisors is an integer number (58882575).

Almost surely, 2^117765149 is an apocalyptic number.

It is an amenable number.

117765149 is a deficient number, since it is larger than the sum of its proper divisors (1).

117765149 is an equidigital number, since it uses as much as digits as its factorization.

117765149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 41.

The square root of 117765149 is about 10851.9652137297. The cubic root of 117765149 is about 490.1611978318.

The spelling of 117765149 in words is "one hundred seventeen million, seven hundred sixty-five thousand, one hundred forty-nine".