1939120273 has 2 divisors, whose sum is σ = 1939120274. Its totient is φ = 1939120272.

The previous prime is 1939120241. The next prime is 1939120279. The reversal of 1939120273 is 3720219391.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1086889024 + 852231249 = 32968^2 + 29193^2 .

It is a cyclic number.

It is not a de Polignac number, because 1939120273 - 2⁵ = 1939120241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1939120279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 969560136 + 969560137.

It is an arithmetic number, because the mean of its divisors is an integer number (969560137).

Almost surely, 2^1939120273 is an apocalyptic number.

It is an amenable number.

1939120273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1939120273 is an equidigital number, since it uses as much as digits as its factorization.

1939120273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 1939120273 is about 44035.4433723563. The cubic root of 1939120273 is about 1247.0051553615.

The spelling of 1939120273 in words is "one billion, nine hundred thirty-nine million, one hundred twenty thousand, two hundred seventy-three".