1833121 has 2 divisors, whose sum is σ = 1833122. Its totient is φ = 1833120.

The previous prime is 1833113. The next prime is 1833131. The reversal of 1833121 is 1213381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1134225 + 698896 = 1065^2 + 836^2 .

It is a cyclic number.

It is not a de Polignac number, because 1833121 - 2³ = 1833113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1833131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 916560 + 916561.

It is an arithmetic number, because the mean of its divisors is an integer number (916561).

2^1833121 is an apocalyptic number.

It is an amenable number.

1833121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1833121 is an equidigital number, since it uses as much as digits as its factorization.

1833121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

The square root of 1833121 is about 1353.9279892225. The cubic root of 1833121 is about 122.3856158428.

The spelling of 1833121 in words is "one million, eight hundred thirty-three thousand, one hundred twenty-one".