16539051 has 8 divisors (see below), whose sum is σ = 22213584. Its totient is φ = 10945280.

The previous prime is 16539049. The next prime is 16539059. The reversal of 16539051 is 15093561.

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 16539051 - 2¹ = 16539049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16539059) 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, 19710 + ... + 20531.

It is an arithmetic number, because the mean of its divisors is an integer number (2776698).

Almost surely, 2^16539051 is an apocalyptic number.

16539051 is a deficient number, since it is larger than the sum of its proper divisors (5674533).

16539051 is a wasteful number, since it uses less digits than its factorization.

16539051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40381.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 16539051 is about 4066.8232073696. The cubic root of 16539051 is about 254.7828524319.

The spelling of 16539051 in words is "sixteen million, five hundred thirty-nine thousand, fifty-one".