1147273 has 2 divisors, whose sum is σ = 1147274. Its totient is φ = 1147272.

The previous prime is 1147271. The next prime is 1147297. The reversal of 1147273 is 3727411.

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., 1026169 + 121104 = 1013^2 + 348^2 .

It is a cyclic number.

It is not a de Polignac number, because 1147273 - 2¹ = 1147271 is a prime.

Together with 1147271, it forms a pair of twin primes.

1147273 is a lucky number.

It is equal to p₈₉₁₁₆ and since 1147273 and 89116 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1147271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573636 + 573637.

It is an arithmetic number, because the mean of its divisors is an integer number (573637).

2^1147273 is an apocalyptic number.

It is an amenable number.

1147273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147273 is an equidigital number, since it uses as much as digits as its factorization.

1147273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1176, while the sum is 25.

The square root of 1147273 is about 1071.1083045145. The cubic root of 1147273 is about 104.6860767461.

The spelling of 1147273 in words is "one million, one hundred forty-seven thousand, two hundred seventy-three".