117863549 has 2 divisors, whose sum is σ = 117863550. Its totient is φ = 117863548.

The previous prime is 117863539. The next prime is 117863657. The reversal of 117863549 is 945368711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83265625 + 34597924 = 9125^2 + 5882^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117863549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117863509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58931774 + 58931775.

It is an arithmetic number, because the mean of its divisors is an integer number (58931775).

Almost surely, 2^117863549 is an apocalyptic number.

It is an amenable number.

117863549 is a deficient number, since it is larger than the sum of its proper divisors (1).

117863549 is an equidigital number, since it uses as much as digits as its factorization.

117863549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 117863549 is about 10856.4980081056. The cubic root of 117863549 is about 490.2976797337.

The spelling of 117863549 in words is "one hundred seventeen million, eight hundred sixty-three thousand, five hundred forty-nine".