1263275 has 24 divisors (see below), whose sum is σ = 1770720. Its totient is φ = 892320.

The previous prime is 1263263. The next prime is 1263299. The reversal of 1263275 is 5723621.

It is not a de Polignac number, because 1263275 - 2⁴ = 1263259 is a prime.

Its product of digits (2520) is a multiple of the sum of its prime factors (72).

It is a plaindrome in base 9 and base 16.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 54914 + ... + 54936.

It is an arithmetic number, because the mean of its divisors is an integer number (73780).

2^1263275 is an apocalyptic number.

1263275 is a deficient number, since it is larger than the sum of its proper divisors (507445).

1263275 is an equidigital number, since it uses as much as digits as its factorization.

1263275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 41 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 1263275 is about 1123.9550702764. The cubic root of 1263275 is about 108.1017274246.

Adding to 1263275 its reverse (5723621), we get a palindrome (6986896).

The spelling of 1263275 in words is "one million, two hundred sixty-three thousand, two hundred seventy-five".