16535013 has 32 divisors (see below), whose sum is σ = 25087104. Its totient is φ = 9680000.

The previous prime is 16535009. The next prime is 16535027. The reversal of 16535013 is 31053561.

It is not a de Polignac number, because 16535013 - 2² = 16535009 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16535003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163663 + ... + 163763.

It is an arithmetic number, because the mean of its divisors is an integer number (783972).

Almost surely, 2^16535013 is an apocalyptic number.

It is an amenable number.

16535013 is a deficient number, since it is larger than the sum of its proper divisors (8552091).

16535013 is a wasteful number, since it uses less digits than its factorization.

16535013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 16535013 is about 4066.3267207641. The cubic root of 16535013 is about 254.7621157141.

Adding to 16535013 its reverse (31053561), we get a palindrome (47588574).

It can be divided in two parts, 1653 and 5013, that added together give a palindrome (6666).

The spelling of 16535013 in words is "sixteen million, five hundred thirty-five thousand, thirteen".