116639249 has 2 divisors, whose sum is σ = 116639250. Its totient is φ = 116639248.

The previous prime is 116639239. The next prime is 116639251. The reversal of 116639249 is 942936611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81450625 + 35188624 = 9025^2 + 5932^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116639249 is a prime.

It is a Sophie Germain prime.

Together with 116639251, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (116639239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58319624 + 58319625.

It is an arithmetic number, because the mean of its divisors is an integer number (58319625).

Almost surely, 2^116639249 is an apocalyptic number.

It is an amenable number.

116639249 is a deficient number, since it is larger than the sum of its proper divisors (1).

116639249 is an equidigital number, since it uses as much as digits as its factorization.

116639249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 116639249 is about 10799.9652314255. The cubic root of 116639249 is about 488.5941223595.

The spelling of 116639249 in words is "one hundred sixteen million, six hundred thirty-nine thousand, two hundred forty-nine".