2045972273 has 2 divisors, whose sum is σ = 2045972274. Its totient is φ = 2045972272.

The previous prime is 2045972267. The next prime is 2045972297. The reversal of 2045972273 is 3722795402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1106427169 + 939545104 = 33263^2 + 30652^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045972273 - 2²⁴ = 2029195057 is a prime.

It is a super-3 number, since 3×2045972273³ (a number of 29 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2045972273.

It is not a weakly prime, because it can be changed into another prime (2045972263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022986136 + 1022986137.

It is an arithmetic number, because the mean of its divisors is an integer number (1022986137).

Almost surely, 2^2045972273 is an apocalyptic number.

It is an amenable number.

2045972273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045972273 is an equidigital number, since it uses as much as digits as its factorization.

2045972273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 2045972273 is about 45232.4250179006. The cubic root of 2045972273 is about 1269.5015865127.

The spelling of 2045972273 in words is "two billion, forty-five million, nine hundred seventy-two thousand, two hundred seventy-three".