1304273 has 2 divisors, whose sum is σ = 1304274. Its totient is φ = 1304272.

The previous prime is 1304267. The next prime is 1304299. The reversal of 1304273 is 3724031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 744769 + 559504 = 863^2 + 748^2 .

It is an emirp because it is prime and its reverse (3724031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1304273 - 2⁶ = 1304209 is a prime.

It is a super-2 number, since 2×1304273² = 3402256117058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1304243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652136 + 652137.

It is an arithmetic number, because the mean of its divisors is an integer number (652137).

2^1304273 is an apocalyptic number.

It is an amenable number.

1304273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304273 is an equidigital number, since it uses as much as digits as its factorization.

1304273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 1304273 is about 1142.0477222954. The cubic root of 1304273 is about 109.2587350126.

The spelling of 1304273 in words is "one million, three hundred four thousand, two hundred seventy-three".