1121853936 has 160 divisors (see below), whose sum is σ = 3691906560. Its totient is φ = 285769728.

The previous prime is 1121853923. The next prime is 1121853937. The reversal of 1121853936 is 6393581211.

It is a junction number, because it is equal to n+sod(n) for n = 1121853894 and 1121853903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121853937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103360 + ... + 113696.

It is an arithmetic number, because the mean of its divisors is an integer number (23074416).

Almost surely, 2^1121853936 is an apocalyptic number.

1121853936 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 1121853936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1845953280).

1121853936 is an abundant number, since it is smaller than the sum of its proper divisors (2570052624).

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

1121853936 is a wasteful number, since it uses less digits than its factorization.

1121853936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10391 (or 10385 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 1121853936 is about 33494.0880753604. The cubic root of 1121853936 is about 1039.0715135258.

The spelling of 1121853936 in words is "one billion, one hundred twenty-one million, eight hundred fifty-three thousand, nine hundred thirty-six".