16331133 has 32 divisors (see below), whose sum is σ = 27037696. Its totient is φ = 8538048.

The previous prime is 16331131. The next prime is 16331149. The reversal of 16331133 is 33113361.

It is not a de Polignac number, because 16331133 - 2¹ = 16331131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16331131) 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, 44316 + ... + 44682.

It is an arithmetic number, because the mean of its divisors is an integer number (844928).

Almost surely, 2^16331133 is an apocalyptic number.

16331133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16331133 is a deficient number, since it is larger than the sum of its proper divisors (10706563).

16331133 is a wasteful number, since it uses less digits than its factorization.

16331133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553.

The product of its digits is 486, while the sum is 21.

The square root of 16331133 is about 4041.1796545068. The cubic root of 16331133 is about 253.7106931924.

Adding to 16331133 its reverse (33113361), we get a palindrome (49444494).

The spelling of 16331133 in words is "sixteen million, three hundred thirty-one thousand, one hundred thirty-three".