1253263 has 4 divisors (see below), whose sum is σ = 1367208. Its totient is φ = 1139320.

The previous prime is 1253261. The next prime is 1253279. The reversal of 1253263 is 3623521.

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

It is a cyclic number.

It is not a de Polignac number, because 1253263 - 2¹ = 1253261 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56956 + ... + 56977.

It is an arithmetic number, because the mean of its divisors is an integer number (341802).

2^1253263 is an apocalyptic number.

1253263 is a deficient number, since it is larger than the sum of its proper divisors (113945).

1253263 is a wasteful number, since it uses less digits than its factorization.

1253263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113944.

The product of its digits is 1080, while the sum is 22.

The square root of 1253263 is about 1119.4922956412. The cubic root of 1253263 is about 107.8153853320.

Adding to 1253263 its reverse (3623521), we get a palindrome (4876784).

The spelling of 1253263 in words is "one million, two hundred fifty-three thousand, two hundred sixty-three".