1126255209 has 8 divisors (see below), whose sum is σ = 1501836000. Its totient is φ = 750755616.

The previous prime is 1126255201. The next prime is 1126255211. The reversal of 1126255209 is 9025526211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1126255209 - 2³ = 1126255201 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1126255209.

It is not an unprimeable number, because it can be changed into a prime (1126255201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29574 + ... + 55920.

It is an arithmetic number, because the mean of its divisors is an integer number (187729500).

Almost surely, 2^1126255209 is an apocalyptic number.

It is an amenable number.

1126255209 is a deficient number, since it is larger than the sum of its proper divisors (375580791).

1126255209 is a wasteful number, since it uses less digits than its factorization.

1126255209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40599.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 1126255209 is about 33559.7259970936. The cubic root of 1126255209 is about 1040.4285736730.

The spelling of 1126255209 in words is "one billion, one hundred twenty-six million, two hundred fifty-five thousand, two hundred nine".