117508247 has 2 divisors, whose sum is σ = 117508248. Its totient is φ = 117508246.

The previous prime is 117508229. The next prime is 117508253. The reversal of 117508247 is 742805711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117508247 - 2¹⁰ = 117507223 is a prime.

It is a super-2 number, since 2×117508247² = 27616376226026018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117501247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58754123 + 58754124.

It is an arithmetic number, because the mean of its divisors is an integer number (58754124).

Almost surely, 2^117508247 is an apocalyptic number.

117508247 is a deficient number, since it is larger than the sum of its proper divisors (1).

117508247 is an equidigital number, since it uses as much as digits as its factorization.

117508247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 117508247 is about 10840.1220934084. The cubic root of 117508247 is about 489.8045131629.

The spelling of 117508247 in words is "one hundred seventeen million, five hundred eight thousand, two hundred forty-seven".