1262238263 has 12 divisors (see below), whose sum is σ = 1483408584. Its totient is φ = 1058864400.

The previous prime is 1262238217. The next prime is 1262238269. The reversal of 1262238263 is 3628322621.

It is not a de Polignac number, because 1262238263 - 2¹⁶ = 1262172727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1262238269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 423368 + ... + 426338.

It is an arithmetic number, because the mean of its divisors is an integer number (123617382).

Almost surely, 2^1262238263 is an apocalyptic number.

1262238263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1262238263 is a deficient number, since it is larger than the sum of its proper divisors (221170321).

1262238263 is an frugal number, since it uses more digits than its factorization.

1262238263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5966 (or 2995 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 1262238263 is about 35527.9926677543. The cubic root of 1262238263 is about 1080.7214723742.

The spelling of 1262238263 in words is "one billion, two hundred sixty-two million, two hundred thirty-eight thousand, two hundred sixty-three".