117129127 has 2 divisors, whose sum is σ = 117129128. Its totient is φ = 117129126.

The previous prime is 117129097. The next prime is 117129139. The reversal of 117129127 is 721921711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117129127 - 2¹¹ = 117127079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117129227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58564563 + 58564564.

It is an arithmetic number, because the mean of its divisors is an integer number (58564564).

Almost surely, 2^117129127 is an apocalyptic number.

117129127 is a deficient number, since it is larger than the sum of its proper divisors (1).

117129127 is an equidigital number, since it uses as much as digits as its factorization.

117129127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764, while the sum is 31.

The square root of 117129127 is about 10822.6210780938. The cubic root of 117129127 is about 489.2771891824.

The spelling of 117129127 in words is "one hundred seventeen million, one hundred twenty-nine thousand, one hundred twenty-seven".