33135972 has 24 divisors (see below), whose sum is σ = 79116576. Its totient is φ = 10788288.

The previous prime is 33135937. The next prime is 33136001. The reversal of 33135972 is 27953133.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31593 + ... + 32624.

It is an arithmetic number, because the mean of its divisors is an integer number (3296524).

Almost surely, 2^33135972 is an apocalyptic number.

It is an amenable number.

33135972 is an abundant number, since it is smaller than the sum of its proper divisors (45980604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33135972 is a wasteful number, since it uses less digits than its factorization.

33135972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64267 (or 64265 counting only the distinct ones).

The product of its digits is 17010, while the sum is 33.

The square root of 33135972 is about 5756.3853241422. The cubic root of 33135972 is about 321.1933695793.

The spelling of 33135972 in words is "thirty-three million, one hundred thirty-five thousand, nine hundred seventy-two".