16539029 has 4 divisors (see below), whose sum is σ = 17811276. Its totient is φ = 15266784.

The previous prime is 16538999. The next prime is 16539041. The reversal of 16539029 is 92093561.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 722500 + 15816529 = 850^2 + 3977^2 .

It is not a de Polignac number, because 16539029 - 2¹² = 16534933 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 16539029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16539049) 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, 636104 + ... + 636129.

It is an arithmetic number, because the mean of its divisors is an integer number (4452819).

Almost surely, 2^16539029 is an apocalyptic number.

It is an amenable number.

16539029 is a deficient number, since it is larger than the sum of its proper divisors (1272247).

16539029 is a wasteful number, since it uses less digits than its factorization.

16539029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272246.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 16539029 is about 4066.8205025548. The cubic root of 16539029 is about 254.7827394623.

The spelling of 16539029 in words is "sixteen million, five hundred thirty-nine thousand, twenty-nine".