1071730273 has 2 divisors, whose sum is σ = 1071730274. Its totient is φ = 1071730272.

The previous prime is 1071730259. The next prime is 1071730327. The reversal of 1071730273 is 3720371701.

Together with next prime (1071730327) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 745999969 + 325730304 = 27313^2 + 18048^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1071730273 is a prime.

It is a super-2 number, since 2×1071730273² = 2297211556129309058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1071730243) 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, 535865136 + 535865137.

It is an arithmetic number, because the mean of its divisors is an integer number (535865137).

Almost surely, 2^1071730273 is an apocalyptic number.

It is an amenable number.

1071730273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071730273 is an equidigital number, since it uses as much as digits as its factorization.

1071730273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6174, while the sum is 31.

The square root of 1071730273 is about 32737.2917786429. The cubic root of 1071730273 is about 1023.3601454234.

The spelling of 1071730273 in words is "one billion, seventy-one million, seven hundred thirty thousand, two hundred seventy-three".