16454289 has 4 divisors (see below), whose sum is σ = 21939056. Its totient is φ = 10969524.

The previous prime is 16454261. The next prime is 16454297. The reversal of 16454289 is 98245461.

16454289 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98245461 = 3 ⋅32748487.

It is not a de Polignac number, because 16454289 - 2⁵ = 16454257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16454299) 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, 2742379 + ... + 2742384.

It is an arithmetic number, because the mean of its divisors is an integer number (5484764).

Almost surely, 2^16454289 is an apocalyptic number.

It is an amenable number.

16454289 is a deficient number, since it is larger than the sum of its proper divisors (5484767).

16454289 is an equidigital number, since it uses as much as digits as its factorization.

16454289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5484766.

The product of its digits is 69120, while the sum is 39.

The square root of 16454289 is about 4056.3886648101. The cubic root of 16454289 is about 254.3468559879.

The spelling of 16454289 in words is "sixteen million, four hundred fifty-four thousand, two hundred eighty-nine".