1126315820 has 48 divisors (see below), whose sum is σ = 2845436160. Its totient is φ = 365840064.

The previous prime is 1126315753. The next prime is 1126315823. The reversal of 1126315820 is 285136211.

It is not an unprimeable number, because it can be changed into a prime (1126315823) 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 15 ways as a sum of consecutive naturals, for example, 209054 + ... + 214373.

It is an arithmetic number, because the mean of its divisors is an integer number (59279920).

Almost surely, 2^1126315820 is an apocalyptic number.

1126315820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1126315820 is an abundant number, since it is smaller than the sum of its proper divisors (1719120340).

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

1126315820 is a wasteful number, since it uses less digits than its factorization.

1126315820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423462 (or 423460 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1126315820 is about 33560.6290167512. The cubic root of 1126315820 is about 1040.4472373780.

The spelling of 1126315820 in words is "one billion, one hundred twenty-six million, three hundred fifteen thousand, eight hundred twenty".