116006509 has 2 divisors, whose sum is σ = 116006510. Its totient is φ = 116006508.

The previous prime is 116006491. The next prime is 116006543. The reversal of 116006509 is 905600611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108222409 + 7784100 = 10403^2 + 2790^2 .

It is an emirp because it is prime and its reverse (905600611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 116006509 - 2⁵ = 116006477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116006599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58003254 + 58003255.

It is an arithmetic number, because the mean of its divisors is an integer number (58003255).

Almost surely, 2^116006509 is an apocalyptic number.

It is an amenable number.

116006509 is a deficient number, since it is larger than the sum of its proper divisors (1).

116006509 is an equidigital number, since it uses as much as digits as its factorization.

116006509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 116006509 is about 10770.6317827693. The cubic root of 116006509 is about 487.7090178868.

The spelling of 116006509 in words is "one hundred sixteen million, six thousand, five hundred nine".