33121105 has 8 divisors (see below), whose sum is σ = 40819752. Its totient is φ = 25780608.

The previous prime is 33121097. The next prime is 33121129. The reversal of 33121105 is 50112133.

It can be written as a sum of positive squares in 4 ways, for example, as 14493249 + 18627856 = 3807^2 + 4316^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33121105 - 2³ = 33121097 is a prime.

It is a Duffinian 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, 89332 + ... + 89701.

It is an arithmetic number, because the mean of its divisors is an integer number (5102469).

Almost surely, 2^33121105 is an apocalyptic number.

It is an amenable number.

33121105 is a deficient number, since it is larger than the sum of its proper divisors (7698647).

33121105 is a wasteful number, since it uses less digits than its factorization.

33121105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179075.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 33121105 is about 5755.0938306860. The cubic root of 33121105 is about 321.1453261604.

Adding to 33121105 its reverse (50112133), we get a palindrome (83233238).

The spelling of 33121105 in words is "thirty-three million, one hundred twenty-one thousand, one hundred five".