117744257 has 2 divisors, whose sum is σ = 117744258. Its totient is φ = 117744256.

The previous prime is 117744229. The next prime is 117744269. The reversal of 117744257 is 752447711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113401201 + 4343056 = 10649^2 + 2084^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117744257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117744257.

It is not a weakly prime, because it can be changed into another prime (117744157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58872128 + 58872129.

It is an arithmetic number, because the mean of its divisors is an integer number (58872129).

Almost surely, 2^117744257 is an apocalyptic number.

It is an amenable number.

117744257 is a deficient number, since it is larger than the sum of its proper divisors (1).

117744257 is an equidigital number, since it uses as much as digits as its factorization.

117744257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54880, while the sum is 38.

The square root of 117744257 is about 10851.0025804070. The cubic root of 117744257 is about 490.1322106103.

The spelling of 117744257 in words is "one hundred seventeen million, seven hundred forty-four thousand, two hundred fifty-seven".