90016133 has 2 divisors, whose sum is σ = 90016134. Its totient is φ = 90016132.

The previous prime is 90016127. The next prime is 90016159. The reversal of 90016133 is 33161009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73839649 + 16176484 = 8593^2 + 4022^2 .

It is a cyclic number.

It is not a de Polignac number, because 90016133 - 2⁴ = 90016117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 90016099 and 90016108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90016103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45008066 + 45008067.

It is an arithmetic number, because the mean of its divisors is an integer number (45008067).

Almost surely, 2^90016133 is an apocalyptic number.

It is an amenable number.

90016133 is a deficient number, since it is larger than the sum of its proper divisors (1).

90016133 is an equidigital number, since it uses as much as digits as its factorization.

90016133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 90016133 is about 9487.6832261622. The cubic root of 90016133 is about 448.1672502791.

The spelling of 90016133 in words is "ninety million, sixteen thousand, one hundred thirty-three".