117204247 has 2 divisors, whose sum is σ = 117204248. Its totient is φ = 117204246.

The previous prime is 117204233. The next prime is 117204277. The reversal of 117204247 is 742402711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117204247 - 2¹⁵ = 117171479 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 (117204277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58602123 + 58602124.

It is an arithmetic number, because the mean of its divisors is an integer number (58602124).

Almost surely, 2^117204247 is an apocalyptic number.

117204247 is a deficient number, since it is larger than the sum of its proper divisors (1).

117204247 is an equidigital number, since it uses as much as digits as its factorization.

117204247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 117204247 is about 10826.0910304689. The cubic root of 117204247 is about 489.3817650716.

Adding to 117204247 its reverse (742402711), we get a palindrome (859606958).

The spelling of 117204247 in words is "one hundred seventeen million, two hundred four thousand, two hundred forty-seven".