116285409 has 8 divisors (see below), whose sum is σ = 172274720. Its totient is φ = 77523588.

The previous prime is 116285399. The next prime is 116285417. The reversal of 116285409 is 904582611.

It is not a de Polignac number, because 116285409 - 2¹² = 116281313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116285479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2153407 + ... + 2153460.

It is an arithmetic number, because the mean of its divisors is an integer number (21534340).

Almost surely, 2^116285409 is an apocalyptic number.

It is an amenable number.

116285409 is a deficient number, since it is larger than the sum of its proper divisors (55989311).

116285409 is an equidigital number, since it uses as much as digits as its factorization.

116285409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306876 (or 4306870 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 116285409 is about 10783.5712544593. The cubic root of 116285409 is about 488.0995510982.

The spelling of 116285409 in words is "one hundred sixteen million, two hundred eighty-five thousand, four hundred nine".