33370081 has 2 divisors, whose sum is σ = 33370082. Its totient is φ = 33370080.

The previous prime is 33370013. The next prime is 33370091. The reversal of 33370081 is 18007333.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21529600 + 11840481 = 4640^2 + 3441^2 .

It is a cyclic number.

It is not a de Polignac number, because 33370081 - 2¹¹ = 33368033 is a prime.

It is a super-2 number, since 2×33370081² = 2227124611893122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33370091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16685040 + 16685041.

It is an arithmetic number, because the mean of its divisors is an integer number (16685041).

Almost surely, 2^33370081 is an apocalyptic number.

It is an amenable number.

33370081 is a deficient number, since it is larger than the sum of its proper divisors (1).

33370081 is an equidigital number, since it uses as much as digits as its factorization.

33370081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 33370081 is about 5776.6842565610. The cubic root of 33370081 is about 321.9480163758.

The spelling of 33370081 in words is "thirty-three million, three hundred seventy thousand, eighty-one".