1043263 has 4 divisors (see below), whose sum is σ = 1123528. Its totient is φ = 963000.

The previous prime is 1043221. The next prime is 1043279. The reversal of 1043263 is 3623401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1043263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1043263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40113 + ... + 40138.

It is an arithmetic number, because the mean of its divisors is an integer number (280882).

2^1043263 is an apocalyptic number.

1043263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1043263 is a deficient number, since it is larger than the sum of its proper divisors (80265).

1043263 is an equidigital number, since it uses as much as digits as its factorization.

1043263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80264.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1043263 is about 1021.4024671989. The cubic root of 1043263 is about 101.4217893464.

Adding to 1043263 its reverse (3623401), we get a palindrome (4666664).

It can be divided in two parts, 104326 and 3, that added together give a square (104329 = 323²).

The spelling of 1043263 in words is "one million, forty-three thousand, two hundred sixty-three".