1126636128 has 60 divisors (see below), whose sum is σ = 3313413180. Its totient is φ = 375544512.

The previous prime is 1126636081. The next prime is 1126636139. The reversal of 1126636128 is 8216366211.

It is a happy number.

1126636128 is a `hidden beast` number, since 1 + 1 + 2 + 6 + 636 + 12 + 8 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1126636092 and 1126636101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 214738 + ... + 219921.

It is an arithmetic number, because the mean of its divisors is an integer number (55223553).

Almost surely, 2^1126636128 is an apocalyptic number.

1126636128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1126636128 is an abundant number, since it is smaller than the sum of its proper divisors (2186777052).

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

1126636128 is an equidigital number, since it uses as much as digits as its factorization.

1126636128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434681 (or 434664 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 1126636128 is about 33565.4007573275. The cubic root of 1126636128 is about 1040.5458574338.

The spelling of 1126636128 in words is "one billion, one hundred twenty-six million, six hundred thirty-six thousand, one hundred twenty-eight".