16530029 has 4 divisors (see below), whose sum is σ = 17100060. Its totient is φ = 15960000.

The previous prime is 16530013. The next prime is 16530043. The reversal of 16530029 is 92003561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92003561 = 13 ⋅7077197.

It can be written as a sum of positive squares in 2 ways, for example, as 5152900 + 11377129 = 2270^2 + 3373^2 .

It is a cyclic number.

It is not a de Polignac number, because 16530029 - 2⁴ = 16530013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16530049) 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, 284972 + ... + 285029.

It is an arithmetic number, because the mean of its divisors is an integer number (4275015).

Almost surely, 2^16530029 is an apocalyptic number.

It is an amenable number.

16530029 is a deficient number, since it is larger than the sum of its proper divisors (570031).

16530029 is an equidigital number, since it uses as much as digits as its factorization.

16530029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570030.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 16530029 is about 4065.7138364622. The cubic root of 16530029 is about 254.7365162587.

The spelling of 16530029 in words is "sixteen million, five hundred thirty thousand, twenty-nine".