16731133 has 4 divisors (see below), whose sum is σ = 16753660. Its totient is φ = 16708608.

The previous prime is 16731109. The next prime is 16731137. The reversal of 16731133 is 33113761.

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 11546404 + 5184729 = 3398^2 + 2277^2 .

It is a cyclic number.

It is not a de Polignac number, because 16731133 - 2¹³ = 16722941 is a prime.

It is a super-2 number, since 2×16731133² = 559861622927378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16731098 and 16731107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16731137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10110 + ... + 11647.

It is an arithmetic number, because the mean of its divisors is an integer number (4188415).

Almost surely, 2^16731133 is an apocalyptic number.

It is an amenable number.

16731133 is a deficient number, since it is larger than the sum of its proper divisors (22527).

16731133 is an equidigital number, since it uses as much as digits as its factorization.

16731133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22526.

The product of its digits is 1134, while the sum is 25.

The square root of 16731133 is about 4090.3707655908. The cubic root of 16731133 is about 255.7653948085.

Adding to 16731133 its reverse (33113761), we get a palindrome (49844894).

The spelling of 16731133 in words is "sixteen million, seven hundred thirty-one thousand, one hundred thirty-three".