2045031973 has 2 divisors, whose sum is σ = 2045031974. Its totient is φ = 2045031972.

The previous prime is 2045031971. The next prime is 2045031991. The reversal of 2045031973 is 3791305402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1343735649 + 701296324 = 36657^2 + 26482^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045031973 - 2¹ = 2045031971 is a prime.

Together with 2045031971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2045031971) 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, 1022515986 + 1022515987.

It is an arithmetic number, because the mean of its divisors is an integer number (1022515987).

Almost surely, 2^2045031973 is an apocalyptic number.

It is an amenable number.

2045031973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045031973 is an equidigital number, since it uses as much as digits as its factorization.

2045031973 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 34.

The square root of 2045031973 is about 45222.0297310946. The cubic root of 2045031973 is about 1269.3070750367.

The spelling of 2045031973 in words is "two billion, forty-five million, thirty-one thousand, nine hundred seventy-three".