33217139 has 2 divisors, whose sum is σ = 33217140. Its totient is φ = 33217138.

The previous prime is 33217127. The next prime is 33217147. The reversal of 33217139 is 93171233.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33217139 - 2¹⁶ = 33151603 is a prime.

It is a super-2 number, since 2×33217139² = 2206756646690642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33217159) 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, 16608569 + 16608570.

It is an arithmetic number, because the mean of its divisors is an integer number (16608570).

Almost surely, 2^33217139 is an apocalyptic number.

33217139 is a deficient number, since it is larger than the sum of its proper divisors (1).

33217139 is an equidigital number, since it uses as much as digits as its factorization.

33217139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402, while the sum is 29.

The square root of 33217139 is about 5763.4311828979. The cubic root of 33217139 is about 321.4554115341.

It can be divided in two parts, 332 and 17139, that added together give a palindrome (17471).

The spelling of 33217139 in words is "thirty-three million, two hundred seventeen thousand, one hundred thirty-nine".