33885139 has 4 divisors (see below), whose sum is σ = 34978240. Its totient is φ = 32792040.

The previous prime is 33885127. The next prime is 33885143. The reversal of 33885139 is 93158833.

It is a happy number.

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 33885139 - 2¹⁷ = 33754067 is a prime.

It is a super-2 number, since 2×33885139² = 2296405290098642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33885149) 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, 546504 + ... + 546565.

It is an arithmetic number, because the mean of its divisors is an integer number (8744560).

Almost surely, 2^33885139 is an apocalyptic number.

33885139 is a deficient number, since it is larger than the sum of its proper divisors (1093101).

33885139 is a wasteful number, since it uses less digits than its factorization.

33885139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093100.

The product of its digits is 77760, while the sum is 40.

The square root of 33885139 is about 5821.0943129278. The cubic root of 33885139 is about 323.5959596744.

The spelling of 33885139 in words is "thirty-three million, eight hundred eighty-five thousand, one hundred thirty-nine".