2028131873 has 2 divisors, whose sum is σ = 2028131874. Its totient is φ = 2028131872.

The previous prime is 2028131869. The next prime is 2028131891. The reversal of 2028131873 is 3781318202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2025720064 + 2411809 = 45008^2 + 1553^2 .

It is a cyclic number.

It is not a de Polignac number, because 2028131873 - 2² = 2028131869 is a prime.

It is a super-2 number, since 2×2028131873² = 8226637788556976258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2028131863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014065936 + 1014065937.

It is an arithmetic number, because the mean of its divisors is an integer number (1014065937).

Almost surely, 2^2028131873 is an apocalyptic number.

It is an amenable number.

2028131873 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028131873 is an equidigital number, since it uses as much as digits as its factorization.

2028131873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 2028131873 is about 45034.7851443748. The cubic root of 2028131873 is about 1265.8008901411.

The spelling of 2028131873 in words is "two billion, twenty-eight million, one hundred thirty-one thousand, eight hundred seventy-three".