1126265856 has 88 divisors (see below), whose sum is σ = 3011939424. Its totient is φ = 374169600.

The previous prime is 1126265821. The next prime is 1126265879. The reversal of 1126265856 is 6585626211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1606306 + ... + 1607006.

Almost surely, 2^1126265856 is an apocalyptic number.

1126265856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1126265856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1505969712).

1126265856 is an abundant number, since it is smaller than the sum of its proper divisors (1885673568).

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

1126265856 is an equidigital number, since it uses as much as digits as its factorization.

1126265856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247 (or 1229 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 1126265856 is about 33559.8846243547. The cubic root of 1126265856 is about 1040.4318522100.

The spelling of 1126265856 in words is "one billion, one hundred twenty-six million, two hundred sixty-five thousand, eight hundred fifty-six".