16452543 has 8 divisors (see below), whose sum is σ = 21956400. Its totient is φ = 10958528.

The previous prime is 16452539. The next prime is 16452551. The reversal of 16452543 is 34525461.

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 16452543 - 2² = 16452539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16452543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16452503) 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, 3523 + ... + 6731.

It is an arithmetic number, because the mean of its divisors is an integer number (2744550).

Almost surely, 2^16452543 is an apocalyptic number.

16452543 is a deficient number, since it is larger than the sum of its proper divisors (5503857).

16452543 is a wasteful number, since it uses less digits than its factorization.

16452543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4921.

The product of its digits is 14400, while the sum is 30.

The square root of 16452543 is about 4056.1734430372. The cubic root of 16452543 is about 254.3378592390.

The spelling of 16452543 in words is "sixteen million, four hundred fifty-two thousand, five hundred forty-three".