33121136 has 10 divisors (see below), whose sum is σ = 64172232. Its totient is φ = 16560560.

The previous prime is 33121129. The next prime is 33121141. The reversal of 33121136 is 63112133.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1035020 + ... + 1035051.

Almost surely, 2^33121136 is an apocalyptic number.

It is an amenable number.

33121136 is a deficient number, since it is larger than the sum of its proper divisors (31051096).

33121136 is a wasteful number, since it uses less digits than its factorization.

33121136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070079 (or 2070073 counting only the distinct ones).

The product of its digits is 324, while the sum is 20.

The square root of 33121136 is about 5755.0965239516. The cubic root of 33121136 is about 321.1454263533.

Adding to 33121136 its reverse (63112133), we get a palindrome (96233269).

The spelling of 33121136 in words is "thirty-three million, one hundred twenty-one thousand, one hundred thirty-six".