16372133 has 2 divisors, whose sum is σ = 16372134. Its totient is φ = 16372132.

The previous prime is 16372073. The next prime is 16372141. The reversal of 16372133 is 33127361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15984004 + 388129 = 3998^2 + 623^2 .

It is a cyclic number.

It is not a de Polignac number, because 16372133 - 2²² = 12177829 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16372183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8186066 + 8186067.

It is an arithmetic number, because the mean of its divisors is an integer number (8186067).

Almost surely, 2^16372133 is an apocalyptic number.

It is an amenable number.

16372133 is a deficient number, since it is larger than the sum of its proper divisors (1).

16372133 is an equidigital number, since it uses as much as digits as its factorization.

16372133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 26.

The square root of 16372133 is about 4046.2492508495. The cubic root of 16372133 is about 253.9228329041.

Adding to 16372133 its reverse (33127361), we get a palindrome (49499494).

The spelling of 16372133 in words is "sixteen million, three hundred seventy-two thousand, one hundred thirty-three".