16243133 has 2 divisors, whose sum is σ = 16243134. Its totient is φ = 16243132.

The previous prime is 16243099. The next prime is 16243147. The reversal of 16243133 is 33134261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9498724 + 6744409 = 3082^2 + 2597^2 .

It is a cyclic number.

It is not a de Polignac number, because 16243133 - 2¹² = 16239037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16243099 and 16243108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16243193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8121566 + 8121567.

It is an arithmetic number, because the mean of its divisors is an integer number (8121567).

Almost surely, 2^16243133 is an apocalyptic number.

It is an amenable number.

16243133 is a deficient number, since it is larger than the sum of its proper divisors (1).

16243133 is an equidigital number, since it uses as much as digits as its factorization.

16243133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 23.

The square root of 16243133 is about 4030.2770376241. The cubic root of 16243133 is about 253.2541671300.

Adding to 16243133 its reverse (33134261), we get a palindrome (49377394).

The spelling of 16243133 in words is "sixteen million, two hundred forty-three thousand, one hundred thirty-three".