1226572775 has 12 divisors (see below), whose sum is σ = 1521387000. Its totient is φ = 980976480.

The previous prime is 1226572747. The next prime is 1226572801. The reversal of 1226572775 is 5772756221.

It is not a de Polignac number, because 1226572775 - 2¹⁰ = 1226571751 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153581 + ... + 161369.

It is an arithmetic number, because the mean of its divisors is an integer number (126782250).

Almost surely, 2^1226572775 is an apocalyptic number.

1226572775 is a deficient number, since it is larger than the sum of its proper divisors (294814225).

1226572775 is an equidigital number, since it uses as much as digits as its factorization.

1226572775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14098 (or 14093 counting only the distinct ones).

The product of its digits is 411600, while the sum is 44.

The square root of 1226572775 is about 35022.4610071879. The cubic root of 1226572775 is about 1070.4452029789.

The spelling of 1226572775 in words is "one billion, two hundred twenty-six million, five hundred seventy-two thousand, seven hundred seventy-five".