1980173053 has 2 divisors, whose sum is σ = 1980173054. Its totient is φ = 1980173052.

The previous prime is 1980173021. The next prime is 1980173119. The reversal of 1980173053 is 3503710891.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1726153209 + 254019844 = 41547^2 + 15938^2 .

It is a cyclic number.

It is not a de Polignac number, because 1980173053 - 2⁵ = 1980173021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1980173353) 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, 990086526 + 990086527.

It is an arithmetic number, because the mean of its divisors is an integer number (990086527).

Almost surely, 2^1980173053 is an apocalyptic number.

It is an amenable number.

1980173053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1980173053 is an equidigital number, since it uses as much as digits as its factorization.

1980173053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 1980173053 is about 44499.1354185674. The cubic root of 1980173053 is about 1255.7438177270.

The spelling of 1980173053 in words is "one billion, nine hundred eighty million, one hundred seventy-three thousand, fifty-three".