117840127 has 2 divisors, whose sum is σ = 117840128. Its totient is φ = 117840126.

The previous prime is 117840119. The next prime is 117840131. The reversal of 117840127 is 721048711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117840127 - 2³ = 117840119 is a prime.

It is a super-2 number, since 2×117840127² = 27772591062752258, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117840187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58920063 + 58920064.

It is an arithmetic number, because the mean of its divisors is an integer number (58920064).

Almost surely, 2^117840127 is an apocalyptic number.

117840127 is a deficient number, since it is larger than the sum of its proper divisors (1).

117840127 is an equidigital number, since it uses as much as digits as its factorization.

117840127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 117840127 is about 10855.4192457040. The cubic root of 117840127 is about 490.2652000481.

Adding to 117840127 its reverse (721048711), we get a palindrome (838888838).

The spelling of 117840127 in words is "one hundred seventeen million, eight hundred forty thousand, one hundred twenty-seven".