1147263 has 16 divisors (see below), whose sum is σ = 1720320. Its totient is φ = 674784.

The previous prime is 1147253. The next prime is 1147271. The reversal of 1147263 is 3627411.

It is not a de Polignac number, because 1147263 - 2⁴ = 1147247 is a prime.

1147263 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147213) 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 in 15 ways as a sum of consecutive naturals, for example, 258 + ... + 1536.

It is an arithmetic number, because the mean of its divisors is an integer number (107520).

2^1147263 is an apocalyptic number.

1147263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1147263 is a deficient number, since it is larger than the sum of its proper divisors (573057).

1147263 is a wasteful number, since it uses less digits than its factorization.

1147263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318.

The product of its digits is 1008, while the sum is 24.

The square root of 1147263 is about 1071.1036364423. The cubic root of 1147263 is about 104.6857725860.

It can be divided in two parts, 11 and 47263, that added together give a palindrome (47274).

The spelling of 1147263 in words is "one million, one hundred forty-seven thousand, two hundred sixty-three".