33124121 has 2 divisors, whose sum is σ = 33124122. Its totient is φ = 33124120.

The previous prime is 33124111. The next prime is 33124153. The reversal of 33124121 is 12142133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33120025 + 4096 = 5755^2 + 64^2 .

It is a cyclic number.

It is not a de Polignac number, because 33124121 - 2⁶ = 33124057 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33124121.

It is not a weakly prime, because it can be changed into another prime (33124111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16562060 + 16562061.

It is an arithmetic number, because the mean of its divisors is an integer number (16562061).

Almost surely, 2^33124121 is an apocalyptic number.

It is an amenable number.

33124121 is a deficient number, since it is larger than the sum of its proper divisors (1).

33124121 is an equidigital number, since it uses as much as digits as its factorization.

33124121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 17.

The square root of 33124121 is about 5755.3558534638. The cubic root of 33124121 is about 321.1550736703.

Adding to 33124121 its reverse (12142133), we get a palindrome (45266254).

It can be divided in two parts, 33124 and 121, that multiplied together give a palindrome (4008004).

The spelling of 33124121 in words is "thirty-three million, one hundred twenty-four thousand, one hundred twenty-one".