7121833 has 2 divisors, whose sum is σ = 7121834. Its totient is φ = 7121832.

The previous prime is 7121819. The next prime is 7121839. The reversal of 7121833 is 3381217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4272489 + 2849344 = 2067^2 + 1688^2 .

It is a cyclic number.

It is not a de Polignac number, because 7121833 - 2⁵ = 7121801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7121798 and 7121807.

It is not a weakly prime, because it can be changed into another prime (7121839) 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 as a sum of consecutive naturals, namely, 3560916 + 3560917.

It is an arithmetic number, because the mean of its divisors is an integer number (3560917).

Almost surely, 2^7121833 is an apocalyptic number.

It is an amenable number.

7121833 is a deficient number, since it is larger than the sum of its proper divisors (1).

7121833 is an equidigital number, since it uses as much as digits as its factorization.

7121833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 25.

The square root of 7121833 is about 2668.6762636184. The cubic root of 7121833 is about 192.3965419220.

It can be divided in two parts, 71 and 21833, that added together give a square (21904 = 148²).

The spelling of 7121833 in words is "seven million, one hundred twenty-one thousand, eight hundred thirty-three".