1101226789 has 4 divisors (see below), whose sum is σ = 1185936556. Its totient is φ = 1016517024.

The previous prime is 1101226783. The next prime is 1101226811. The reversal of 1101226789 is 9876221011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 537544225 + 563682564 = 23185^2 + 23742^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101226789 - 2³ = 1101226781 is a prime.

It is a super-2 number, since 2×1101226789² = 2425400881622501042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101226781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42354864 + ... + 42354889.

It is an arithmetic number, because the mean of its divisors is an integer number (296484139).

Almost surely, 2^1101226789 is an apocalyptic number.

It is an amenable number.

1101226789 is a deficient number, since it is larger than the sum of its proper divisors (84709767).

1101226789 is an equidigital number, since it uses as much as digits as its factorization.

1101226789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84709766.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 1101226789 is about 33184.7372899048. The cubic root of 1101226789 is about 1032.6637273946.

The spelling of 1101226789 in words is "one billion, one hundred one million, two hundred twenty-six thousand, seven hundred eighty-nine".