117801289 has 2 divisors, whose sum is σ = 117801290. Its totient is φ = 117801288.

The previous prime is 117801269. The next prime is 117801293. The reversal of 117801289 is 982108711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116467264 + 1334025 = 10792^2 + 1155^2 .

It is a cyclic number.

It is not a de Polignac number, because 117801289 - 2²¹ = 115704137 is a prime.

It is not a weakly prime, because it can be changed into another prime (117801269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58900644 + 58900645.

It is an arithmetic number, because the mean of its divisors is an integer number (58900645).

Almost surely, 2^117801289 is an apocalyptic number.

It is an amenable number.

117801289 is a deficient number, since it is larger than the sum of its proper divisors (1).

117801289 is an equidigital number, since it uses as much as digits as its factorization.

117801289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 37.

The square root of 117801289 is about 10853.6302221883. The cubic root of 117801289 is about 490.2113332470.

The spelling of 117801289 in words is "one hundred seventeen million, eight hundred one thousand, two hundred eighty-nine".