1263126326 has 32 divisors (see below), whose sum is σ = 2369993472. Its totient is φ = 490505760.

The previous prime is 1263126323. The next prime is 1263126413. The reversal of 1263126326 is 6236213621.

It is a junction number, because it is equal to n+sod(n) for n = 1263126292 and 1263126301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263126323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33920 + ... + 60636.

It is an arithmetic number, because the mean of its divisors is an integer number (74062296).

Almost surely, 2^1263126326 is an apocalyptic number.

1263126326 is a deficient number, since it is larger than the sum of its proper divisors (1106867146).

1263126326 is a wasteful number, since it uses less digits than its factorization.

1263126326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27044.

The product of its digits is 15552, while the sum is 32.

The square root of 1263126326 is about 35540.4885447570. The cubic root of 1263126326 is about 1080.9748645132.

Adding to 1263126326 its reverse (6236213621), we get a palindrome (7499339947).

The spelling of 1263126326 in words is "one billion, two hundred sixty-three million, one hundred twenty-six thousand, three hundred twenty-six".