1155263 has 2 divisors, whose sum is σ = 1155264. Its totient is φ = 1155262.

The previous prime is 1155247. The next prime is 1155293. The reversal of 1155263 is 3625511.

It is a weak prime.

It is an emirp because it is prime and its reverse (3625511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1155263 - 2⁴ = 1155247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577631 + 577632.

It is an arithmetic number, because the mean of its divisors is an integer number (577632).

2^1155263 is an apocalyptic number.

1155263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155263 is an equidigital number, since it uses as much as digits as its factorization.

1155263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 900, while the sum is 23.

The square root of 1155263 is about 1074.8316147193. The cubic root of 1155263 is about 104.9285379203.

The spelling of 1155263 in words is "one million, one hundred fifty-five thousand, two hundred sixty-three".