16115489 has 8 divisors (see below), whose sum is σ = 17489472. Its totient is φ = 14760720.

The previous prime is 16115467. The next prime is 16115527. The reversal of 16115489 is 98451161.

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

It is a de Polignac number, because none of the positive numbers 2^k-16115489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16115089) 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, 3029 + ... + 6434.

It is an arithmetic number, because the mean of its divisors is an integer number (2186184).

Almost surely, 2^16115489 is an apocalyptic number.

It is an amenable number.

16115489 is a deficient number, since it is larger than the sum of its proper divisors (1373983).

16115489 is a wasteful number, since it uses less digits than its factorization.

16115489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9607.

The product of its digits is 8640, while the sum is 35.

The square root of 16115489 is about 4014.4101683809. The cubic root of 16115489 is about 252.5890363388.

The spelling of 16115489 in words is "sixteen million, one hundred fifteen thousand, four hundred eighty-nine".