118272409 has 8 divisors (see below), whose sum is σ = 122266368. Its totient is φ = 114289680.

The previous prime is 118272379. The next prime is 118272419. The reversal of 118272409 is 904272811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118272409 - 2⁹ = 118271897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118272419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22314 + ... + 27100.

It is an arithmetic number, because the mean of its divisors is an integer number (15283296).

Almost surely, 2^118272409 is an apocalyptic number.

It is an amenable number.

118272409 is a deficient number, since it is larger than the sum of its proper divisors (3993959).

118272409 is an equidigital number, since it uses as much as digits as its factorization.

118272409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5615.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 118272409 is about 10875.3119035732. The cubic root of 118272409 is about 490.8639609955.

The spelling of 118272409 in words is "one hundred eighteen million, two hundred seventy-two thousand, four hundred nine".