1126896209 has 4 divisors (see below), whose sum is σ = 1126967604. Its totient is φ = 1126824816.

The previous prime is 1126896151. The next prime is 1126896257. The reversal of 1126896209 is 9026986211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 117245584 + 1009650625 = 10828^2 + 31775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1126896209 - 2⁸ = 1126895953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1126896209.

It is not an unprimeable number, because it can be changed into a prime (1126896409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362 + ... + 47475.

It is an arithmetic number, because the mean of its divisors is an integer number (281741901).

Almost surely, 2^1126896209 is an apocalyptic number.

It is an amenable number.

1126896209 is a deficient number, since it is larger than the sum of its proper divisors (71395).

1126896209 is an equidigital number, since it uses as much as digits as its factorization.

1126896209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71394.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 1126896209 is about 33569.2747761997. The cubic root of 1126896209 is about 1040.6259203688.

The spelling of 1126896209 in words is "one billion, one hundred twenty-six million, eight hundred ninety-six thousand, two hundred nine".