33936139 has 4 divisors (see below), whose sum is σ = 34052256. Its totient is φ = 33820024.

The previous prime is 33936137. The next prime is 33936143. The reversal of 33936139 is 93163933.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33936139 - 2¹ = 33936137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33936098 and 33936107.

It is not an unprimeable number, because it can be changed into a prime (33936137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57619 + ... + 58204.

It is an arithmetic number, because the mean of its divisors is an integer number (8513064).

Almost surely, 2^33936139 is an apocalyptic number.

33936139 is a deficient number, since it is larger than the sum of its proper divisors (116117).

33936139 is a wasteful number, since it uses less digits than its factorization.

33936139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116116.

The product of its digits is 39366, while the sum is 37.

The square root of 33936139 is about 5825.4732854936. The cubic root of 33936139 is about 323.7582247231.

The spelling of 33936139 in words is "thirty-three million, nine hundred thirty-six thousand, one hundred thirty-nine".