117122147 has 2 divisors, whose sum is σ = 117122148. Its totient is φ = 117122146.

The previous prime is 117122051. The next prime is 117122171. The reversal of 117122147 is 741221711.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117122147 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117122177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58561073 + 58561074.

It is an arithmetic number, because the mean of its divisors is an integer number (58561074).

Almost surely, 2^117122147 is an apocalyptic number.

117122147 is a deficient number, since it is larger than the sum of its proper divisors (1).

117122147 is an equidigital number, since it uses as much as digits as its factorization.

117122147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 784, while the sum is 26.

The square root of 117122147 is about 10822.2986005746. The cubic root of 117122147 is about 489.2674699301.

Adding to 117122147 its reverse (741221711), we get a palindrome (858343858).

The spelling of 117122147 in words is "one hundred seventeen million, one hundred twenty-two thousand, one hundred forty-seven".