116128249 has 4 divisors (see below), whose sum is σ = 116164260. Its totient is φ = 116092240.

The previous prime is 116128217. The next prime is 116128279. The reversal of 116128249 is 942821611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 942821611 = 53 ⋅17789087.

It can be written as a sum of positive squares in 2 ways, for example, as 94225849 + 21902400 = 9707^2 + 4680^2 .

It is a cyclic number.

It is not a de Polignac number, because 116128249 - 2⁵ = 116128217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116128279) 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, 12634 + ... + 19795.

It is an arithmetic number, because the mean of its divisors is an integer number (29041065).

Almost surely, 2^116128249 is an apocalyptic number.

It is an amenable number.

116128249 is a deficient number, since it is larger than the sum of its proper divisors (36011).

116128249 is an equidigital number, since it uses as much as digits as its factorization.

116128249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36010.

The product of its digits is 6912, while the sum is 34.

The square root of 116128249 is about 10776.2817799091. The cubic root of 116128249 is about 487.8795627383.

The spelling of 116128249 in words is "one hundred sixteen million, one hundred twenty-eight thousand, two hundred forty-nine".