1126720512 has 132 divisors (see below), whose sum is σ = 3276346320. Its totient is φ = 372928512.

The previous prime is 1126720493. The next prime is 1126720537. The reversal of 1126720512 is 2150276211.

1126720512 is a `hidden beast` number, since 1 + 126 + 7 + 20 + 512 = 666.

It is a super-2 number, since 2×1126720512² = 2538998224323084288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1649323 + ... + 1650005.

Almost surely, 2^1126720512 is an apocalyptic number.

1126720512 is a gapful number since it is divisible by the number (12) 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 1126720512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1638173160).

1126720512 is an abundant number, since it is smaller than the sum of its proper divisors (2149625808).

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

1126720512 is a wasteful number, since it uses less digits than its factorization.

1126720512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 1126720512 is about 33566.6577424682. The cubic root of 1126720512 is about 1040.5718354248.

Adding to 1126720512 its reverse (2150276211), we get a palindrome (3276996723).

The spelling of 1126720512 in words is "one billion, one hundred twenty-six million, seven hundred twenty thousand, five hundred twelve".