117239 has 2 divisors, whose sum is σ = 117240. Its totient is φ = 117238.

The previous prime is 117223. The next prime is 117241. The reversal of 117239 is 932711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117239 - 2⁴ = 117223 is a prime.

Together with 117241, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 7.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58619 + 58620.

It is an arithmetic number, because the mean of its divisors is an integer number (58620).

2¹¹⁷²³⁹ is an apocalyptic number.

117239 is a deficient number, since it is larger than the sum of its proper divisors (1).

117239 is an equidigital number, since it uses as much as digits as its factorization.

117239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378, while the sum is 23.

The square root of 117239 is about 342.4018107429. The cubic root of 117239 is about 48.9430130224.

The spelling of 117239 in words is "one hundred seventeen thousand, two hundred thirty-nine".