117501247 has 2 divisors, whose sum is σ = 117501248. Its totient is φ = 117501246.

The previous prime is 117501221. The next prime is 117501257. The reversal of 117501247 is 742105711.

It is a strong prime.

It is an emirp because it is prime and its reverse (742105711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117501247 - 2⁷ = 117501119 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117501217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58750623 + 58750624.

It is an arithmetic number, because the mean of its divisors is an integer number (58750624).

Almost surely, 2^117501247 is an apocalyptic number.

117501247 is a deficient number, since it is larger than the sum of its proper divisors (1).

117501247 is an equidigital number, since it uses as much as digits as its factorization.

117501247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 117501247 is about 10839.7992140076. The cubic root of 117501247 is about 489.7947870380.

Adding to 117501247 its reverse (742105711), we get a palindrome (859606958).

The spelling of 117501247 in words is "one hundred seventeen million, five hundred one thousand, two hundred forty-seven".