116639239 has 2 divisors, whose sum is σ = 116639240. Its totient is φ = 116639238.

The previous prime is 116639221. The next prime is 116639249. The reversal of 116639239 is 932936611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 116639239 - 2⁷ = 116639111 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 (116639249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58319619 + 58319620.

It is an arithmetic number, because the mean of its divisors is an integer number (58319620).

Almost surely, 2^116639239 is an apocalyptic number.

116639239 is a deficient number, since it is larger than the sum of its proper divisors (1).

116639239 is an equidigital number, since it uses as much as digits as its factorization.

116639239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 40.

The square root of 116639239 is about 10799.9647684611. The cubic root of 116639239 is about 488.5941083964.

It can be divided in two parts, 11663 and 9239, that added together give a palindrome (20902).

The spelling of 116639239 in words is "one hundred sixteen million, six hundred thirty-nine thousand, two hundred thirty-nine".