117499247 has 2 divisors, whose sum is σ = 117499248. Its totient is φ = 117499246.

The previous prime is 117499231. The next prime is 117499273. The reversal of 117499247 is 742994711.

It is a weak prime.

It is an emirp because it is prime and its reverse (742994711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117499247 - 2⁴ = 117499231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117499198 and 117499207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117499297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58749623 + 58749624.

It is an arithmetic number, because the mean of its divisors is an integer number (58749624).

Almost surely, 2^117499247 is an apocalyptic number.

117499247 is a deficient number, since it is larger than the sum of its proper divisors (1).

117499247 is an equidigital number, since it uses as much as digits as its factorization.

117499247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 44.

The square root of 117499247 is about 10839.7069609838. The cubic root of 117499247 is about 489.7920080742.

The spelling of 117499247 in words is "one hundred seventeen million, four hundred ninety-nine thousand, two hundred forty-seven".