117312133 has 2 divisors, whose sum is σ = 117312134. Its totient is φ = 117312132.

The previous prime is 117312131. The next prime is 117312157. The reversal of 117312133 is 331213711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64995844 + 52316289 = 8062^2 + 7233^2 .

It is a cyclic number.

It is not a de Polignac number, because 117312133 - 2¹ = 117312131 is a prime.

Together with 117312131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117312131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58656066 + 58656067.

It is an arithmetic number, because the mean of its divisors is an integer number (58656067).

Almost surely, 2^117312133 is an apocalyptic number.

It is an amenable number.

117312133 is a deficient number, since it is larger than the sum of its proper divisors (1).

117312133 is an equidigital number, since it uses as much as digits as its factorization.

117312133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378, while the sum is 22.

The square root of 117312133 is about 10831.0725692334. The cubic root of 117312133 is about 489.5318769512.

Adding to 117312133 its reverse (331213711), we get a palindrome (448525844).

The spelling of 117312133 in words is "one hundred seventeen million, three hundred twelve thousand, one hundred thirty-three".