33140689 has 2 divisors, whose sum is σ = 33140690. Its totient is φ = 33140688.

The previous prime is 33140683. The next prime is 33140717. The reversal of 33140689 is 98604133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26091664 + 7049025 = 5108^2 + 2655^2 .

It is a cyclic number.

It is not a de Polignac number, because 33140689 - 2⁷ = 33140561 is a prime.

It is equal to p_2039758 and since 33140689 and 2039758 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (33140683) 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, 16570344 + 16570345.

It is an arithmetic number, because the mean of its divisors is an integer number (16570345).

Almost surely, 2^33140689 is an apocalyptic number.

It is an amenable number.

33140689 is a deficient number, since it is larger than the sum of its proper divisors (1).

33140689 is an equidigital number, since it uses as much as digits as its factorization.

33140689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 33140689 is about 5756.7950284859. The cubic root of 33140689 is about 321.2086097865.

The spelling of 33140689 in words is "thirty-three million, one hundred forty thousand, six hundred eighty-nine".