1226709512 has 108 divisors (see below), whose sum is σ = 2817219015. Its totient is φ = 499282560.

The previous prime is 1226709481. The next prime is 1226709557. The reversal of 1226709512 is 2159076221.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 51179716 + 1175529796 = 7154^2 + 34286^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=24766.

It is a Duffinian 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 26 ways as a sum of consecutive naturals, for example, 20109962 + ... + 20110022.

Almost surely, 2^1226709512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226709512

1226709512 is an abundant number, since it is smaller than the sum of its proper divisors (1590509503).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1226709512 is an equidigital number, since it uses as much as digits as its factorization.

1226709512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1226709512 is about 35024.4130857321. The cubic root of 1226709512 is about 1070.4849788568.

It can be divided in two parts, 1226709 and 512, that added together give a palindrome (1227221).

The spelling of 1226709512 in words is "one billion, two hundred twenty-six million, seven hundred nine thousand, five hundred twelve".