1836288121 has 2 divisors, whose sum is σ = 1836288122. Its totient is φ = 1836288120.

The previous prime is 1836288107. The next prime is 1836288151. The reversal of 1836288121 is 1218826381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1622075625 + 214212496 = 40275^2 + 14636^2 .

It is a cyclic number.

It is not a de Polignac number, because 1836288121 - 2⁵ = 1836288089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1836288101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 918144060 + 918144061.

It is an arithmetic number, because the mean of its divisors is an integer number (918144061).

Almost surely, 2^1836288121 is an apocalyptic number.

It is an amenable number.

1836288121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1836288121 is an equidigital number, since it uses as much as digits as its factorization.

1836288121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 40.

The square root of 1836288121 is about 42851.9325235164. The cubic root of 1836288121 is about 1224.5605800871.

The spelling of 1836288121 in words is "one billion, eight hundred thirty-six million, two hundred eighty-eight thousand, one hundred twenty-one".