116209249 has 4 divisors (see below), whose sum is σ = 125148436. Its totient is φ = 107270064.

The previous prime is 116209243. The next prime is 116209253. The reversal of 116209249 is 942902611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 942902611 = 7 ⋅134700373.

It can be written as a sum of positive squares in 2 ways, for example, as 12475024 + 103734225 = 3532^2 + 10185^2 .

It is a cyclic number.

It is not a de Polignac number, because 116209249 - 2³ = 116209241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116209241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4469574 + ... + 4469599.

It is an arithmetic number, because the mean of its divisors is an integer number (31287109).

Almost surely, 2^116209249 is an apocalyptic number.

It is an amenable number.

116209249 is a deficient number, since it is larger than the sum of its proper divisors (8939187).

116209249 is an equidigital number, since it uses as much as digits as its factorization.

116209249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8939186.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 116209249 is about 10780.0393784067. The cubic root of 116209249 is about 487.9929691386.

The spelling of 116209249 in words is "one hundred sixteen million, two hundred nine thousand, two hundred forty-nine".