33133801 has 2 divisors, whose sum is σ = 33133802. Its totient is φ = 33133800.

The previous prime is 33133787. The next prime is 33133811. The reversal of 33133801 is 10833133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28515600 + 4618201 = 5340^2 + 2149^2 .

It is an emirp because it is prime and its reverse (10833133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33133801 - 2⁷ = 33133673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33133811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16566900 + 16566901.

It is an arithmetic number, because the mean of its divisors is an integer number (16566901).

Almost surely, 2^33133801 is an apocalyptic number.

It is an amenable number.

33133801 is a deficient number, since it is larger than the sum of its proper divisors (1).

33133801 is an equidigital number, since it uses as much as digits as its factorization.

33133801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 33133801 is about 5756.1967478536. The cubic root of 33133801 is about 321.1863547855.

Adding to 33133801 its reverse (10833133), we get a palindrome (43966934).

The spelling of 33133801 in words is "thirty-three million, one hundred thirty-three thousand, eight hundred one".