117138293 has 2 divisors, whose sum is σ = 117138294. Its totient is φ = 117138292.

The previous prime is 117138289. The next prime is 117138299. The reversal of 117138293 is 392831711.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66699889 + 50438404 = 8167^2 + 7102^2 .

It is a cyclic number.

It is not a de Polignac number, because 117138293 - 2² = 117138289 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117138299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58569146 + 58569147.

It is an arithmetic number, because the mean of its divisors is an integer number (58569147).

Almost surely, 2^117138293 is an apocalyptic number.

It is an amenable number.

117138293 is a deficient number, since it is larger than the sum of its proper divisors (1).

117138293 is an equidigital number, since it uses as much as digits as its factorization.

117138293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 35.

The square root of 117138293 is about 10823.0445346954. The cubic root of 117138293 is about 489.2899517288.

The spelling of 117138293 in words is "one hundred seventeen million, one hundred thirty-eight thousand, two hundred ninety-three".