16115449 has 8 divisors (see below), whose sum is σ = 18457920. Its totient is φ = 13783056.

The previous prime is 16115413. The next prime is 16115453. The reversal of 16115449 is 94451161.

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

It is not a de Polignac number, because 16115449 - 2¹⁹ = 15591161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16115449.

It is not an unprimeable number, because it can be changed into a prime (16115149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1302 + ... + 5824.

It is an arithmetic number, because the mean of its divisors is an integer number (2307240).

Almost surely, 2^16115449 is an apocalyptic number.

It is an amenable number.

16115449 is a deficient number, since it is larger than the sum of its proper divisors (2342471).

16115449 is an equidigital number, since it uses as much as digits as its factorization.

16115449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5039.

The product of its digits is 4320, while the sum is 31.

The square root of 16115449 is about 4014.4051863259. The cubic root of 16115449 is about 252.5888273563.

The spelling of 16115449 in words is "sixteen million, one hundred fifteen thousand, four hundred forty-nine".