16021136 has 10 divisors (see below), whose sum is σ = 31040982. Its totient is φ = 8010560.

The previous prime is 16021129. The next prime is 16021139. The reversal of 16021136 is 63112061.

16021136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11424400 + 4596736 = 3380^2 + 2144^2 .

It is not an unprimeable number, because it can be changed into a prime (16021139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500645 + ... + 500676.

Almost surely, 2^16021136 is an apocalyptic number.

16021136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16021136 is a deficient number, since it is larger than the sum of its proper divisors (15019846).

16021136 is a wasteful number, since it uses less digits than its factorization.

16021136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001329 (or 1001323 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 16021136 is about 4002.6411280553. The cubic root of 16021136 is about 252.0951182038.

Adding to 16021136 its reverse (63112061), we get a palindrome (79133197).

The spelling of 16021136 in words is "sixteen million, twenty-one thousand, one hundred thirty-six".