33365121 has 16 divisors (see below), whose sum is σ = 47361600. Its totient is φ = 20832768.

The previous prime is 33365107. The next prime is 33365147. The reversal of 33365121 is 12156333.

It is a happy number.

It is not a de Polignac number, because 33365121 - 2⁵ = 33365089 is a prime.

It is a super-2 number, since 2×33365121² = 2226462598689282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33365091 and 33365100.

It is not an unprimeable number, because it can be changed into a prime (33365191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1785 + ... + 8361.

It is an arithmetic number, because the mean of its divisors is an integer number (2960100).

Almost surely, 2^33365121 is an apocalyptic number.

It is an amenable number.

33365121 is a deficient number, since it is larger than the sum of its proper divisors (13996479).

33365121 is a wasteful number, since it uses less digits than its factorization.

33365121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6688.

The product of its digits is 1620, while the sum is 24.

The square root of 33365121 is about 5776.2549285848. The cubic root of 33365121 is about 321.9320645487.

The spelling of 33365121 in words is "thirty-three million, three hundred sixty-five thousand, one hundred twenty-one".