33849121 has 2 divisors, whose sum is σ = 33849122. Its totient is φ = 33849120.

The previous prime is 33849047. The next prime is 33849133. The reversal of 33849121 is 12194833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22043025 + 11806096 = 4695^2 + 3436^2 .

It is a cyclic number.

It is not a de Polignac number, because 33849121 - 2¹³ = 33840929 is a prime.

It is a super-2 number, since 2×33849121² = 2291525984945282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33849521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16924560 + 16924561.

It is an arithmetic number, because the mean of its divisors is an integer number (16924561).

Almost surely, 2^33849121 is an apocalyptic number.

It is an amenable number.

33849121 is a deficient number, since it is larger than the sum of its proper divisors (1).

33849121 is an equidigital number, since it uses as much as digits as its factorization.

33849121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 33849121 is about 5817.9997421794. Note that the first 3 decimals coincide. The cubic root of 33849121 is about 323.4812642484.

The spelling of 33849121 in words is "thirty-three million, eight hundred forty-nine thousand, one hundred twenty-one".