117906193 has 2 divisors, whose sum is σ = 117906194. Its totient is φ = 117906192.

The previous prime is 117906179. The next prime is 117906223. The reversal of 117906193 is 391609711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117007489 + 898704 = 10817^2 + 948^2 .

It is a cyclic number.

It is not a de Polignac number, because 117906193 - 2¹⁷ = 117775121 is a prime.

It is equal to p_6729175 and since 117906193 and 6729175 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (117906133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58953096 + 58953097.

It is an arithmetic number, because the mean of its divisors is an integer number (58953097).

Almost surely, 2^117906193 is an apocalyptic number.

It is an amenable number.

117906193 is a deficient number, since it is larger than the sum of its proper divisors (1).

117906193 is an equidigital number, since it uses as much as digits as its factorization.

117906193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 117906193 is about 10858.4618155612. The cubic root of 117906193 is about 490.3568038461.

The spelling of 117906193 in words is "one hundred seventeen million, nine hundred six thousand, one hundred ninety-three".