117210239 has 2 divisors, whose sum is σ = 117210240. Its totient is φ = 117210238.

The previous prime is 117210229. The next prime is 117210253. The reversal of 117210239 is 932012711.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117210239 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117210209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58605119 + 58605120.

It is an arithmetic number, because the mean of its divisors is an integer number (58605120).

Almost surely, 2^117210239 is an apocalyptic number.

117210239 is a deficient number, since it is larger than the sum of its proper divisors (1).

117210239 is an equidigital number, since it uses as much as digits as its factorization.

117210239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 117210239 is about 10826.3677657837. The cubic root of 117210239 is about 489.3901047170.

It can be divided in two parts, 1172 and 10239, that added together give a palindrome (11411).

The spelling of 117210239 in words is "one hundred seventeen million, two hundred ten thousand, two hundred thirty-nine".